2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
27 #include <libavcodec/avcodec.h>
28 #include <libavutil/stereo3d.h>
29 #include <libavutil/mastering_display_metadata.h>
32 #include "gstavcodecmap.h"
33 #include "gstavutils.h"
34 #include "gstavviddec.h"
36 GST_DEBUG_CATEGORY_STATIC (GST_CAT_PERFORMANCE);
38 #if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(58,132,100)
39 #define AV_CODEC_CAP_OTHER_THREADS AV_CODEC_CAP_AUTO_THREADS
42 #define GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED (1<<15)
44 #define MAX_TS_MASK 0xff
46 #define DEFAULT_LOWRES 0
47 #define DEFAULT_SKIPFRAME 0
48 #define DEFAULT_DIRECT_RENDERING TRUE
49 #define DEFAULT_MAX_THREADS 0
50 #define DEFAULT_OUTPUT_CORRUPT TRUE
51 #define REQUIRED_POOL_MAX_BUFFERS 32
52 #define DEFAULT_STRIDE_ALIGN 31
53 #define DEFAULT_ALLOC_PARAM { 0, DEFAULT_STRIDE_ALIGN, 0, 0, }
54 #define DEFAULT_THREAD_TYPE 0
55 #define DEFAULT_STD_COMPLIANCE GST_AV_CODEC_COMPLIANCE_AUTO
62 PROP_DIRECT_RENDERING,
71 /* A number of function prototypes are given so we can refer to them later. */
72 static void gst_ffmpegviddec_finalize (GObject * object);
74 static gboolean gst_ffmpegviddec_set_format (GstVideoDecoder * decoder,
75 GstVideoCodecState * state);
76 static GstFlowReturn gst_ffmpegviddec_handle_frame (GstVideoDecoder * decoder,
77 GstVideoCodecFrame * frame);
78 static gboolean gst_ffmpegviddec_start (GstVideoDecoder * decoder);
79 static gboolean gst_ffmpegviddec_stop (GstVideoDecoder * decoder);
80 static gboolean gst_ffmpegviddec_flush (GstVideoDecoder * decoder);
81 static gboolean gst_ffmpegviddec_decide_allocation (GstVideoDecoder * decoder,
83 static gboolean gst_ffmpegviddec_propose_allocation (GstVideoDecoder * decoder,
86 static void gst_ffmpegviddec_set_property (GObject * object,
87 guint prop_id, const GValue * value, GParamSpec * pspec);
88 static void gst_ffmpegviddec_get_property (GObject * object,
89 guint prop_id, GValue * value, GParamSpec * pspec);
91 static gboolean gst_ffmpegviddec_negotiate (GstFFMpegVidDec * ffmpegdec,
92 AVCodecContext * context, AVFrame * picture, GstBufferFlags flags);
94 /* some sort of bufferpool handling, but different */
95 static int gst_ffmpegviddec_get_buffer2 (AVCodecContext * context,
96 AVFrame * picture, int flags);
97 static gboolean gst_ffmpegviddec_can_direct_render (GstFFMpegVidDec *
100 static GstFlowReturn gst_ffmpegviddec_finish (GstVideoDecoder * decoder);
101 static GstFlowReturn gst_ffmpegviddec_drain (GstVideoDecoder * decoder);
103 static gboolean picture_changed (GstFFMpegVidDec * ffmpegdec,
104 AVFrame * picture, gboolean one_field);
105 static gboolean context_changed (GstFFMpegVidDec * ffmpegdec,
106 AVCodecContext * context);
108 G_DEFINE_ABSTRACT_TYPE (GstFFMpegVidDec, gst_ffmpegviddec,
109 GST_TYPE_VIDEO_DECODER);
111 #define parent_class gst_ffmpegviddec_parent_class
113 #define GST_FFMPEGVIDDEC_TYPE_LOWRES (gst_ffmpegviddec_lowres_get_type())
115 gst_ffmpegviddec_lowres_get_type (void)
117 static GType ffmpegdec_lowres_type = 0;
119 if (!ffmpegdec_lowres_type) {
120 static const GEnumValue ffmpegdec_lowres[] = {
122 {1, "1", "1/2-size"},
123 {2, "2", "1/4-size"},
127 ffmpegdec_lowres_type =
128 g_enum_register_static ("GstLibAVVidDecLowres", ffmpegdec_lowres);
131 return ffmpegdec_lowres_type;
134 #define GST_FFMPEGVIDDEC_TYPE_SKIPFRAME (gst_ffmpegviddec_skipframe_get_type())
136 gst_ffmpegviddec_skipframe_get_type (void)
138 static GType ffmpegdec_skipframe_type = 0;
140 if (!ffmpegdec_skipframe_type) {
141 static const GEnumValue ffmpegdec_skipframe[] = {
142 {0, "0", "Skip nothing"},
143 {1, "1", "Skip B-frames"},
144 {2, "2", "Skip IDCT/Dequantization"},
145 {5, "5", "Skip everything"},
149 ffmpegdec_skipframe_type =
150 g_enum_register_static ("GstLibAVVidDecSkipFrame", ffmpegdec_skipframe);
153 return ffmpegdec_skipframe_type;
156 static const GFlagsValue ffmpegdec_thread_types[] = {
157 {0x0, "Auto", "auto"},
158 {0x1, "Frame", "frame"},
159 {0x2, "Slice", "slice"},
163 #define GST_FFMPEGVIDDEC_TYPE_THREAD_TYPE (gst_ffmpegviddec_thread_type_get_type())
165 gst_ffmpegviddec_thread_type_get_type (void)
167 static GType ffmpegdec_thread_type_type = 0;
169 if (!ffmpegdec_thread_type_type) {
170 ffmpegdec_thread_type_type =
171 g_flags_register_static ("GstLibAVVidDecThreadType",
172 ffmpegdec_thread_types);
174 return ffmpegdec_thread_type_type;
178 dup_caps_with_alternate (GstCaps * caps)
180 GstCaps *with_alternate;
181 GstCapsFeatures *features;
183 with_alternate = gst_caps_copy (caps);
184 features = gst_caps_features_new (GST_CAPS_FEATURE_FORMAT_INTERLACED, NULL);
185 gst_caps_set_features_simple (with_alternate, features);
187 gst_caps_set_simple (with_alternate, "interlace-mode", G_TYPE_STRING,
190 return with_alternate;
194 gst_ffmpegviddec_class_init (GstFFMpegVidDecClass * klass)
196 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
198 gobject_class->set_property = gst_ffmpegviddec_set_property;
199 gobject_class->get_property = gst_ffmpegviddec_get_property;
202 * GstFFMpegVidDec:std-compliance:
204 * Specifies standard compliance mode to use
208 g_object_class_install_property (gobject_class, PROP_STD_COMPLIANCE,
209 g_param_spec_enum ("std-compliance", "Standard Compliance",
210 "Standard compliance mode to use", GST_TYPE_AV_CODEC_COMPLIANCE,
211 DEFAULT_STD_COMPLIANCE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
215 gst_ffmpegviddec_subclass_init (GstFFMpegVidDecClass * klass,
216 gconstpointer class_data)
218 GstVideoDecoderClass *viddec_class = GST_VIDEO_DECODER_CLASS (klass);
219 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
220 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
221 GstPadTemplate *sinktempl, *srctempl;
222 GstCaps *sinkcaps, *srccaps;
223 const AVCodec *in_plugin;
224 gchar *longname, *description;
227 in_plugin = class_data;
228 g_assert (in_plugin != NULL);
230 /* construct the element details struct */
231 longname = g_strdup_printf ("libav %s decoder", in_plugin->long_name);
232 description = g_strdup_printf ("libav %s decoder", in_plugin->name);
233 gst_element_class_set_metadata (element_class, longname,
234 "Codec/Decoder/Video", description,
235 "Wim Taymans <wim.taymans@gmail.com>, "
236 "Ronald Bultje <rbultje@ronald.bitfreak.net>, "
237 "Edward Hervey <bilboed@bilboed.com>");
239 g_free (description);
242 sinkcaps = gst_ffmpeg_codecid_to_caps (in_plugin->id, NULL, FALSE);
244 GST_DEBUG ("Couldn't get sink caps for decoder '%s'", in_plugin->name);
245 sinkcaps = gst_caps_new_empty_simple ("unknown/unknown");
247 srccaps = gst_ffmpeg_codectype_to_video_caps (NULL,
248 in_plugin->id, FALSE, in_plugin);
250 GST_DEBUG ("Couldn't get source caps for decoder '%s'", in_plugin->name);
251 srccaps = gst_caps_from_string ("video/x-raw");
253 gst_caps_append (srccaps, dup_caps_with_alternate (srccaps));
256 sinktempl = gst_pad_template_new ("sink", GST_PAD_SINK,
257 GST_PAD_ALWAYS, sinkcaps);
258 srctempl = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, srccaps);
260 gst_element_class_add_pad_template (element_class, srctempl);
261 gst_element_class_add_pad_template (element_class, sinktempl);
263 gst_caps_unref (sinkcaps);
264 gst_caps_unref (srccaps);
266 klass->in_plugin = in_plugin;
268 gobject_class->finalize = gst_ffmpegviddec_finalize;
270 gobject_class->set_property = gst_ffmpegviddec_set_property;
271 gobject_class->get_property = gst_ffmpegviddec_get_property;
273 g_object_class_install_property (gobject_class, PROP_SKIPFRAME,
274 g_param_spec_enum ("skip-frame", "Skip frames",
275 "Which types of frames to skip during decoding",
276 GST_FFMPEGVIDDEC_TYPE_SKIPFRAME, 0,
277 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
278 g_object_class_install_property (gobject_class, PROP_LOWRES,
279 g_param_spec_enum ("lowres", "Low resolution",
280 "At which resolution to decode images",
281 GST_FFMPEGVIDDEC_TYPE_LOWRES, 0,
282 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
283 g_object_class_install_property (gobject_class, PROP_DIRECT_RENDERING,
284 g_param_spec_boolean ("direct-rendering", "Direct Rendering",
285 "Enable direct rendering", DEFAULT_DIRECT_RENDERING,
286 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
287 #ifndef GST_REMOVE_DEPRECATED
288 g_object_class_install_property (gobject_class, PROP_DEBUG_MV,
289 g_param_spec_boolean ("debug-mv", "Debug motion vectors",
290 "Whether to print motion vectors on top of the image "
291 "(deprecated, non-functional)", FALSE,
292 G_PARAM_DEPRECATED | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
294 g_object_class_install_property (gobject_class, PROP_OUTPUT_CORRUPT,
295 g_param_spec_boolean ("output-corrupt", "Output corrupt buffers",
296 "Whether libav should output frames even if corrupted",
297 DEFAULT_OUTPUT_CORRUPT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
299 caps = klass->in_plugin->capabilities;
300 if (caps & (AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_SLICE_THREADS)) {
301 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_THREADS,
302 g_param_spec_int ("max-threads", "Maximum decode threads",
303 "Maximum number of worker threads to spawn. (0 = auto)",
304 0, G_MAXINT, DEFAULT_MAX_THREADS,
305 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
306 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_THREAD_TYPE,
307 g_param_spec_flags ("thread-type", "Thread type",
308 "Multithreading methods to use",
309 GST_FFMPEGVIDDEC_TYPE_THREAD_TYPE,
310 DEFAULT_THREAD_TYPE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
313 viddec_class->set_format = gst_ffmpegviddec_set_format;
314 viddec_class->handle_frame = gst_ffmpegviddec_handle_frame;
315 viddec_class->start = gst_ffmpegviddec_start;
316 viddec_class->stop = gst_ffmpegviddec_stop;
317 viddec_class->flush = gst_ffmpegviddec_flush;
318 viddec_class->finish = gst_ffmpegviddec_finish;
319 viddec_class->drain = gst_ffmpegviddec_drain;
320 viddec_class->decide_allocation = gst_ffmpegviddec_decide_allocation;
321 viddec_class->propose_allocation = gst_ffmpegviddec_propose_allocation;
323 GST_DEBUG_CATEGORY_GET (GST_CAT_PERFORMANCE, "GST_PERFORMANCE");
325 gst_type_mark_as_plugin_api (GST_FFMPEGVIDDEC_TYPE_LOWRES, 0);
326 gst_type_mark_as_plugin_api (GST_FFMPEGVIDDEC_TYPE_SKIPFRAME, 0);
327 gst_type_mark_as_plugin_api (GST_FFMPEGVIDDEC_TYPE_THREAD_TYPE, 0);
328 gst_type_mark_as_plugin_api (GST_TYPE_AV_CODEC_COMPLIANCE, 0);
329 gst_type_mark_as_plugin_api (GST_TYPE_FFMPEGVIDDEC, 0);
333 gst_ffmpegviddec_init (GstFFMpegVidDec * ffmpegdec)
338 gst_ffmpegviddec_subinit (GstFFMpegVidDec * ffmpegdec)
340 GstFFMpegVidDecClass *klass =
341 (GstFFMpegVidDecClass *) G_OBJECT_GET_CLASS (ffmpegdec);
343 /* some ffmpeg data */
344 ffmpegdec->context = avcodec_alloc_context3 (klass->in_plugin);
345 ffmpegdec->context->opaque = ffmpegdec;
346 ffmpegdec->picture = av_frame_alloc ();
347 ffmpegdec->opened = FALSE;
348 ffmpegdec->skip_frame = ffmpegdec->lowres = 0;
349 ffmpegdec->direct_rendering = DEFAULT_DIRECT_RENDERING;
350 ffmpegdec->max_threads = DEFAULT_MAX_THREADS;
351 ffmpegdec->output_corrupt = DEFAULT_OUTPUT_CORRUPT;
352 ffmpegdec->thread_type = DEFAULT_THREAD_TYPE;
353 ffmpegdec->std_compliance = DEFAULT_STD_COMPLIANCE;
355 GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (ffmpegdec));
356 gst_video_decoder_set_use_default_pad_acceptcaps (GST_VIDEO_DECODER_CAST
359 gst_video_decoder_set_needs_format (GST_VIDEO_DECODER (ffmpegdec), TRUE);
363 gst_ffmpegviddec_finalize (GObject * object)
365 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (object);
367 av_frame_free (&ffmpegdec->picture);
368 avcodec_free_context (&ffmpegdec->context);
370 G_OBJECT_CLASS (parent_class)->finalize (object);
374 gst_ffmpegviddec_context_set_flags (AVCodecContext * context, guint flags,
377 g_return_if_fail (context != NULL);
380 context->flags |= flags;
382 context->flags &= ~flags;
386 gst_ffmpegviddec_context_set_flags2 (AVCodecContext * context, guint flags,
389 g_return_if_fail (context != NULL);
392 context->flags2 |= flags;
394 context->flags2 &= ~flags;
399 gst_ffmpegviddec_close (GstFFMpegVidDec * ffmpegdec, gboolean reset)
401 GstFFMpegVidDecClass *oclass;
404 oclass = GST_FFMPEGVIDDEC_GET_CLASS (ffmpegdec);
406 GST_LOG_OBJECT (ffmpegdec, "closing ffmpeg codec");
408 gst_caps_replace (&ffmpegdec->last_caps, NULL);
410 gst_ffmpeg_avcodec_close (ffmpegdec->context);
411 ffmpegdec->opened = FALSE;
413 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
414 ffmpegdec->stride[i] = -1;
416 gst_buffer_replace (&ffmpegdec->palette, NULL);
418 av_freep (&ffmpegdec->context->extradata);
420 avcodec_free_context (&ffmpegdec->context);
421 ffmpegdec->context = avcodec_alloc_context3 (oclass->in_plugin);
422 if (ffmpegdec->context == NULL) {
423 GST_DEBUG_OBJECT (ffmpegdec, "Failed to set context defaults");
426 ffmpegdec->context->opaque = ffmpegdec;
433 gst_ffmpegviddec_open (GstFFMpegVidDec * ffmpegdec)
435 GstFFMpegVidDecClass *oclass;
438 oclass = GST_FFMPEGVIDDEC_GET_CLASS (ffmpegdec);
440 if (gst_ffmpeg_avcodec_open (ffmpegdec->context, oclass->in_plugin) < 0)
443 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
444 ffmpegdec->stride[i] = -1;
446 ffmpegdec->opened = TRUE;
448 GST_LOG_OBJECT (ffmpegdec, "Opened libav codec %s, id %d",
449 oclass->in_plugin->name, oclass->in_plugin->id);
451 gst_ffmpegviddec_context_set_flags (ffmpegdec->context,
452 AV_CODEC_FLAG_OUTPUT_CORRUPT, ffmpegdec->output_corrupt);
459 gst_ffmpegviddec_close (ffmpegdec, TRUE);
460 GST_DEBUG_OBJECT (ffmpegdec, "avdec_%s: Failed to open libav codec",
461 oclass->in_plugin->name);
467 gst_ffmpegviddec_get_palette (GstFFMpegVidDec * ffmpegdec,
468 GstVideoCodecState * state)
470 GstStructure *str = gst_caps_get_structure (state->caps, 0);
471 const GValue *palette_v;
474 /* do we have a palette? */
475 if ((palette_v = gst_structure_get_value (str, "palette_data"))) {
476 palette = gst_value_get_buffer (palette_v);
477 GST_DEBUG ("got palette data %p", palette);
478 if (gst_buffer_get_size (palette) >= AVPALETTE_SIZE) {
479 gst_buffer_replace (&ffmpegdec->palette, palette);
485 gst_ffmpegviddec_needs_reset (GstFFMpegVidDec * ffmpegdec,
486 GstVideoCodecState * state)
488 GstCaps *last_caps, *new_caps;
489 gboolean needs_reset;
491 if (ffmpegdec->last_caps == NULL)
494 last_caps = gst_caps_copy (ffmpegdec->last_caps);
495 new_caps = gst_caps_copy (state->caps);
497 /* Simply ignore framerate for now, this could easily be evolved per CODEC if
498 * future issue are found.*/
499 gst_structure_remove_field (gst_caps_get_structure (last_caps, 0),
501 gst_structure_remove_field (gst_caps_get_structure (new_caps, 0),
504 needs_reset = !gst_caps_is_equal (last_caps, new_caps);
506 gst_caps_unref (last_caps);
507 gst_caps_unref (new_caps);
513 gst_ffmpegviddec_set_format (GstVideoDecoder * decoder,
514 GstVideoCodecState * state)
516 GstFFMpegVidDec *ffmpegdec;
517 GstFFMpegVidDecClass *oclass;
518 GstClockTime latency = GST_CLOCK_TIME_NONE;
519 gboolean ret = FALSE;
523 ffmpegdec = GST_FFMPEGVIDDEC (decoder);
524 oclass = GST_FFMPEGVIDDEC_GET_CLASS (ffmpegdec);
526 GST_DEBUG_OBJECT (ffmpegdec, "setcaps called");
528 GST_OBJECT_LOCK (ffmpegdec);
530 if (!gst_ffmpegviddec_needs_reset (ffmpegdec, state)) {
531 gst_caps_replace (&ffmpegdec->last_caps, state->caps);
535 /* close old session */
536 if (ffmpegdec->opened) {
537 GST_OBJECT_UNLOCK (ffmpegdec);
538 gst_ffmpegviddec_finish (decoder);
539 GST_OBJECT_LOCK (ffmpegdec);
540 if (!gst_ffmpegviddec_close (ffmpegdec, TRUE)) {
541 GST_OBJECT_UNLOCK (ffmpegdec);
544 ffmpegdec->pic_pix_fmt = 0;
545 ffmpegdec->pic_width = 0;
546 ffmpegdec->pic_height = 0;
547 ffmpegdec->pic_par_n = 0;
548 ffmpegdec->pic_par_d = 0;
549 ffmpegdec->pic_interlaced = 0;
550 ffmpegdec->pic_field_order = 0;
551 ffmpegdec->pic_field_order_changed = FALSE;
552 ffmpegdec->ctx_ticks = 0;
553 ffmpegdec->ctx_time_n = 0;
554 ffmpegdec->ctx_time_d = 0;
555 ffmpegdec->cur_multiview_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
556 ffmpegdec->cur_multiview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
559 gst_caps_replace (&ffmpegdec->last_caps, state->caps);
561 /* set buffer functions */
562 ffmpegdec->context->get_buffer2 = gst_ffmpegviddec_get_buffer2;
563 ffmpegdec->context->draw_horiz_band = NULL;
565 /* reset coded_width/_height to prevent it being reused from last time when
566 * the codec is opened again, causing a mismatch and possible
567 * segfault/corruption. (Common scenario when renegotiating caps) */
568 ffmpegdec->context->coded_width = 0;
569 ffmpegdec->context->coded_height = 0;
571 GST_LOG_OBJECT (ffmpegdec, "size %dx%d", ffmpegdec->context->width,
572 ffmpegdec->context->height);
574 /* FIXME : Create a method that takes GstVideoCodecState instead */
575 /* get size and so */
576 gst_ffmpeg_caps_with_codecid (oclass->in_plugin->id,
577 oclass->in_plugin->type, state->caps, ffmpegdec->context);
579 GST_LOG_OBJECT (ffmpegdec, "size after %dx%d", ffmpegdec->context->width,
580 ffmpegdec->context->height);
582 gst_ffmpegviddec_get_palette (ffmpegdec, state);
584 if (!ffmpegdec->context->time_base.den || !ffmpegdec->context->time_base.num) {
585 GST_DEBUG_OBJECT (ffmpegdec, "forcing 25/1 framerate");
586 ffmpegdec->context->time_base.num = 1;
587 ffmpegdec->context->time_base.den = 25;
590 /* workaround encoder bugs */
591 ffmpegdec->context->workaround_bugs |= FF_BUG_AUTODETECT;
592 ffmpegdec->context->err_recognition = 1;
595 ffmpegdec->context->lowres = ffmpegdec->lowres;
596 ffmpegdec->context->skip_frame = ffmpegdec->skip_frame;
599 query = gst_query_new_latency ();
601 /* Check if upstream is live. If it isn't we can enable frame based
602 * threading, which is adding latency */
603 if (gst_pad_peer_query (GST_VIDEO_DECODER_SINK_PAD (ffmpegdec), query)) {
604 gst_query_parse_latency (query, &is_live, NULL, NULL);
606 gst_query_unref (query);
608 if (ffmpegdec->thread_type) {
609 GST_DEBUG_OBJECT (ffmpegdec, "Use requested thread type 0x%x",
610 ffmpegdec->thread_type);
611 ffmpegdec->context->thread_type = ffmpegdec->thread_type;
614 ffmpegdec->context->thread_type = FF_THREAD_SLICE;
616 ffmpegdec->context->thread_type = FF_THREAD_SLICE | FF_THREAD_FRAME;
619 if (ffmpegdec->max_threads == 0) {
620 /* When thread type is FF_THREAD_FRAME, extra latency is introduced equal
621 * to one frame per thread. We thus need to calculate the thread count ourselves */
622 if ((!(oclass->in_plugin->capabilities & AV_CODEC_CAP_OTHER_THREADS)) ||
623 (ffmpegdec->context->thread_type & FF_THREAD_FRAME))
624 ffmpegdec->context->thread_count =
625 MIN (gst_ffmpeg_auto_max_threads (), 16);
627 ffmpegdec->context->thread_count = 0;
629 ffmpegdec->context->thread_count = ffmpegdec->max_threads;
631 if (ffmpegdec->std_compliance == GST_AV_CODEC_COMPLIANCE_AUTO) {
632 /* Normal yields lower latency, but fails some compliance check */
633 if (is_live || ffmpegdec->context->thread_type == FF_THREAD_SLICE) {
634 ffmpegdec->context->strict_std_compliance =
635 GST_AV_CODEC_COMPLIANCE_NORMAL;
637 ffmpegdec->context->strict_std_compliance =
638 GST_AV_CODEC_COMPLIANCE_STRICT;
641 ffmpegdec->context->strict_std_compliance = ffmpegdec->std_compliance;
644 if (oclass->in_plugin->id == AV_CODEC_ID_H264) {
645 GstStructure *s = gst_caps_get_structure (state->caps, 0);
646 const char *alignment;
647 gboolean nal_aligned;
649 alignment = gst_structure_get_string (s, "alignment");
650 nal_aligned = !g_strcmp0 (alignment, "nal");
652 if (ffmpegdec->context->thread_type == FF_THREAD_FRAME)
654 ffmpegdec->context->thread_type = FF_THREAD_SLICE;
657 gst_ffmpegviddec_context_set_flags2 (ffmpegdec->context,
658 AV_CODEC_FLAG2_CHUNKS, nal_aligned);
659 gst_video_decoder_set_subframe_mode (decoder, nal_aligned);
662 /* open codec - we don't select an output pix_fmt yet,
663 * simply because we don't know! We only get it
664 * during playback... */
665 if (!gst_ffmpegviddec_open (ffmpegdec))
669 if (ffmpegdec->input_state)
670 gst_video_codec_state_unref (ffmpegdec->input_state);
671 ffmpegdec->input_state = gst_video_codec_state_ref (state);
673 /* Use the framerate values stored in the decoder for calculating latency. The
674 * upstream framerate might not be set but we still want to report a latency
676 if (ffmpegdec->context->time_base.den && ffmpegdec->context->ticks_per_frame) {
677 gint fps_n = ffmpegdec->context->time_base.den;
679 ffmpegdec->context->time_base.num * ffmpegdec->context->ticks_per_frame;
681 latency = gst_util_uint64_scale_ceil (
682 (ffmpegdec->context->has_b_frames) * GST_SECOND, fps_d, fps_n);
684 if (ffmpegdec->context->thread_type & FF_THREAD_FRAME) {
686 gst_util_uint64_scale_ceil (ffmpegdec->context->thread_count *
687 GST_SECOND, fps_d, fps_n);
695 GST_OBJECT_UNLOCK (ffmpegdec);
697 if (GST_CLOCK_TIME_IS_VALID (latency))
698 gst_video_decoder_set_latency (decoder, latency, latency);
705 GST_DEBUG_OBJECT (ffmpegdec, "Failed to open");
710 GST_ERROR_OBJECT (ffmpegdec,
711 "Can't do NAL aligned H.264 with frame threading.");
718 GstFFMpegVidDec *ffmpegdec;
719 GstVideoCodecFrame *frame;
721 GstVideoFrame vframe;
723 AVBufferRef *avbuffer;
724 } GstFFMpegVidDecVideoFrame;
726 static GstFFMpegVidDecVideoFrame *
727 gst_ffmpegviddec_video_frame_new (GstFFMpegVidDec * ffmpegdec,
728 GstVideoCodecFrame * frame)
730 GstFFMpegVidDecVideoFrame *dframe;
732 dframe = g_slice_new0 (GstFFMpegVidDecVideoFrame);
733 dframe->ffmpegdec = ffmpegdec;
734 dframe->frame = frame;
736 GST_DEBUG_OBJECT (ffmpegdec, "new video frame %p", dframe);
742 gst_ffmpegviddec_video_frame_free (GstFFMpegVidDec * ffmpegdec,
743 GstFFMpegVidDecVideoFrame * frame)
745 GST_DEBUG_OBJECT (ffmpegdec, "free video frame %p", frame);
748 gst_video_frame_unmap (&frame->vframe);
749 GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame->frame,
750 GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
751 gst_video_decoder_release_frame (GST_VIDEO_DECODER (ffmpegdec), frame->frame);
752 gst_buffer_replace (&frame->buffer, NULL);
753 if (frame->avbuffer) {
754 av_buffer_unref (&frame->avbuffer);
756 g_slice_free (GstFFMpegVidDecVideoFrame, frame);
760 dummy_free_buffer (void *opaque, uint8_t * data)
762 GstFFMpegVidDecVideoFrame *frame = opaque;
764 gst_ffmpegviddec_video_frame_free (frame->ffmpegdec, frame);
767 /* This function prepares the pool configuration for direct rendering. To use
768 * this method, the codec should support direct rendering and the pool should
769 * support video meta and video alignment */
771 gst_ffmpegvideodec_prepare_dr_pool (GstFFMpegVidDec * ffmpegdec,
772 GstBufferPool * pool, GstVideoInfo * info, GstStructure * config)
774 GstAllocationParams params;
775 GstVideoAlignment align;
776 GstAllocator *allocator = NULL;
778 gint linesize_align[AV_NUM_DATA_POINTERS];
782 width = GST_VIDEO_INFO_WIDTH (info);
783 height = MAX (GST_VIDEO_INFO_HEIGHT (info), ffmpegdec->context->coded_height);
785 /* let ffmpeg find the alignment and padding */
786 avcodec_align_dimensions2 (ffmpegdec->context, &width, &height,
789 align.padding_top = 0;
790 align.padding_left = 0;
791 align.padding_right = width - GST_VIDEO_INFO_WIDTH (info);
792 align.padding_bottom = height - GST_VIDEO_INFO_HEIGHT (info);
794 /* add extra padding to match libav buffer allocation sizes */
795 align.padding_bottom++;
797 gst_buffer_pool_config_get_allocator (config, &allocator, ¶ms);
799 max_align = DEFAULT_STRIDE_ALIGN;
800 max_align |= params.align;
802 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
803 if (linesize_align[i] > 0)
804 max_align |= linesize_align[i] - 1;
807 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++)
808 align.stride_align[i] = max_align;
810 params.align = max_align;
812 gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
814 GST_DEBUG_OBJECT (ffmpegdec, "aligned dimension %dx%d -> %dx%d "
815 "padding t:%u l:%u r:%u b:%u, stride_align %d:%d:%d:%d",
816 GST_VIDEO_INFO_WIDTH (info),
817 GST_VIDEO_INFO_HEIGHT (info), width, height, align.padding_top,
818 align.padding_left, align.padding_right, align.padding_bottom,
819 align.stride_align[0], align.stride_align[1], align.stride_align[2],
820 align.stride_align[3]);
822 gst_buffer_pool_config_add_option (config,
823 GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
824 gst_buffer_pool_config_set_video_alignment (config, &align);
828 gst_ffmpegviddec_ensure_internal_pool (GstFFMpegVidDec * ffmpegdec,
829 AVFrame * picture, GstVideoInterlaceMode interlace_mode)
831 GstAllocationParams params = DEFAULT_ALLOC_PARAM;
833 GstVideoFormat format;
835 GstStructure *config;
838 format = gst_ffmpeg_pixfmt_to_videoformat (picture->format);
840 if (ffmpegdec->internal_pool != NULL &&
841 GST_VIDEO_INFO_FORMAT (&ffmpegdec->pool_info) == format &&
842 ffmpegdec->pool_width == picture->width &&
843 ffmpegdec->pool_height == picture->height &&
844 ffmpegdec->pool_format == picture->format)
847 GST_DEBUG_OBJECT (ffmpegdec, "Updating internal pool (%i, %i)",
848 picture->width, picture->height);
850 /* if we are negotiating from get_buffer, then renegotiate later in order
851 * to potentially use a downstream pool */
852 if (gst_ffmpegviddec_can_direct_render (ffmpegdec))
853 gst_pad_mark_reconfigure (GST_VIDEO_DECODER_SRC_PAD (ffmpegdec));
855 format = gst_ffmpeg_pixfmt_to_videoformat (picture->format);
857 if (interlace_mode == GST_VIDEO_INTERLACE_MODE_ALTERNATE) {
858 gst_video_info_set_interlaced_format (&info, format, interlace_mode,
859 picture->width, 2 * picture->height);
861 gst_video_info_set_format (&info, format, picture->width, picture->height);
864 /* If we have not yet been negotiated, a NONE format here would
865 * result in invalid initial dimension alignments, and potential
866 * out of bounds writes.
868 ffmpegdec->context->pix_fmt = picture->format;
870 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
871 ffmpegdec->stride[i] = -1;
873 if (ffmpegdec->internal_pool)
874 gst_object_unref (ffmpegdec->internal_pool);
876 ffmpegdec->internal_pool = gst_video_buffer_pool_new ();
877 config = gst_buffer_pool_get_config (ffmpegdec->internal_pool);
879 caps = gst_video_info_to_caps (&info);
880 gst_buffer_pool_config_set_params (config, caps, info.size, 2, 0);
881 gst_buffer_pool_config_set_allocator (config, NULL, ¶ms);
882 gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
884 gst_ffmpegvideodec_prepare_dr_pool (ffmpegdec,
885 ffmpegdec->internal_pool, &info, config);
886 /* generic video pool never fails */
887 gst_buffer_pool_set_config (ffmpegdec->internal_pool, config);
888 gst_caps_unref (caps);
890 gst_buffer_pool_set_active (ffmpegdec->internal_pool, TRUE);
892 /* Remember pool size so we can detect changes */
893 ffmpegdec->pool_width = picture->width;
894 ffmpegdec->pool_height =
895 MAX (picture->height, ffmpegdec->context->coded_height);
896 ffmpegdec->pool_format = picture->format;
897 ffmpegdec->pool_info = info;
901 gst_ffmpegviddec_can_direct_render (GstFFMpegVidDec * ffmpegdec)
903 GstFFMpegVidDecClass *oclass;
905 if (!ffmpegdec->direct_rendering)
908 oclass = GST_FFMPEGVIDDEC_GET_CLASS (ffmpegdec);
909 return ((oclass->in_plugin->capabilities & AV_CODEC_CAP_DR1) ==
913 /* called when ffmpeg wants us to allocate a buffer to write the decoded frame
914 * into. We try to give it memory from our pool */
916 gst_ffmpegviddec_get_buffer2 (AVCodecContext * context, AVFrame * picture,
919 GstVideoCodecFrame *frame;
920 GstFFMpegVidDecVideoFrame *dframe;
921 GstFFMpegVidDec *ffmpegdec;
924 int create_buffer_flags = 0;
926 ffmpegdec = GST_FFMPEGVIDDEC (context->opaque);
928 GST_DEBUG_OBJECT (ffmpegdec, "getting buffer picture %p", picture);
930 /* apply the last info we have seen to this picture, when we get the
931 * picture back from ffmpeg we can use this to correctly timestamp the output
933 GST_DEBUG_OBJECT (ffmpegdec, "opaque value SN %d",
934 (gint32) picture->reordered_opaque);
937 gst_video_decoder_get_frame (GST_VIDEO_DECODER (ffmpegdec),
938 picture->reordered_opaque);
939 if (G_UNLIKELY (frame == NULL))
942 /* now it has a buffer allocated, so it is real and will also
944 GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
945 GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
946 GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame,
947 GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
949 if (G_UNLIKELY (frame->output_buffer != NULL))
950 goto duplicate_frame;
952 /* GstFFMpegVidDecVideoFrame receives the frame ref */
953 if (picture->opaque) {
954 dframe = picture->opaque;
955 dframe->frame = frame;
957 picture->opaque = dframe =
958 gst_ffmpegviddec_video_frame_new (ffmpegdec, frame);
961 GST_DEBUG_OBJECT (ffmpegdec, "storing opaque %p", dframe);
963 if (!gst_ffmpegviddec_can_direct_render (ffmpegdec))
966 gst_ffmpegviddec_ensure_internal_pool (ffmpegdec, picture,
967 GST_BUFFER_FLAG_IS_SET (frame->input_buffer,
968 GST_VIDEO_BUFFER_FLAG_ONEFIELD) ? GST_VIDEO_INTERLACE_MODE_ALTERNATE :
969 GST_VIDEO_INTERLACE_MODE_PROGRESSIVE);
971 ret = gst_buffer_pool_acquire_buffer (ffmpegdec->internal_pool,
972 &frame->output_buffer, NULL);
973 if (ret != GST_FLOW_OK)
976 /* piggy-backed alloc'ed on the frame,
977 * and there was much rejoicing and we are grateful.
978 * Now take away buffer from frame, we will give it back later when decoded.
979 * This allows multiple request for a buffer per frame; unusual but possible. */
980 gst_buffer_replace (&dframe->buffer, frame->output_buffer);
981 gst_buffer_replace (&frame->output_buffer, NULL);
984 if (!gst_video_frame_map (&dframe->vframe, &ffmpegdec->pool_info,
985 dframe->buffer, GST_MAP_READWRITE))
987 dframe->mapped = TRUE;
989 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
990 if (c < GST_VIDEO_INFO_N_PLANES (&ffmpegdec->pool_info)) {
991 picture->data[c] = GST_VIDEO_FRAME_PLANE_DATA (&dframe->vframe, c);
992 picture->linesize[c] = GST_VIDEO_FRAME_PLANE_STRIDE (&dframe->vframe, c);
994 if (ffmpegdec->stride[c] == -1)
995 ffmpegdec->stride[c] = picture->linesize[c];
997 /* libav does not allow stride changes, decide allocation should check
998 * before replacing the internal pool with a downstream pool.
999 * https://bugzilla.gnome.org/show_bug.cgi?id=704769
1000 * https://bugzilla.libav.org/show_bug.cgi?id=556
1002 g_assert (picture->linesize[c] == ffmpegdec->stride[c]);
1004 picture->data[c] = NULL;
1005 picture->linesize[c] = 0;
1007 GST_LOG_OBJECT (ffmpegdec, "linesize %d, data %p", picture->linesize[c],
1011 if ((flags & AV_GET_BUFFER_FLAG_REF) == AV_GET_BUFFER_FLAG_REF) {
1012 /* decoder might reuse this AVFrame and it would result to no more
1013 * get_buffer() call if the AVFrame's AVBuffer is writable
1014 * (meaning that the refcount of AVBuffer == 1).
1015 * To enforce get_buffer() for the every output frame, set read-only flag here
1017 create_buffer_flags = AV_BUFFER_FLAG_READONLY;
1019 picture->buf[0] = av_buffer_create (NULL,
1020 0, dummy_free_buffer, dframe, create_buffer_flags);
1022 GST_LOG_OBJECT (ffmpegdec, "returned frame %p", dframe->buffer);
1029 int ret = avcodec_default_get_buffer2 (context, picture, flags);
1031 GST_LOG_OBJECT (ffmpegdec, "direct rendering disabled, fallback alloc");
1033 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
1034 ffmpegdec->stride[c] = picture->linesize[c];
1036 /* Wrap our buffer around the default one to be able to have a callback
1037 * when our data can be freed. Just putting our data into the first free
1038 * buffer might not work if there are too many allocated already
1040 if (picture->buf[0]) {
1041 dframe->avbuffer = picture->buf[0];
1043 av_buffer_create (picture->buf[0]->data, picture->buf[0]->size,
1044 dummy_free_buffer, dframe, 0);
1047 av_buffer_create (NULL, 0, dummy_free_buffer, dframe, 0);
1054 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, FAILED,
1055 ("Unable to allocate memory"),
1056 ("The downstream pool failed to allocated buffer."));
1061 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, OPEN_READ_WRITE,
1062 ("Cannot access memory for read and write operation."),
1063 ("The video memory allocated from downstream pool could not mapped for"
1064 "read and write."));
1069 GST_WARNING_OBJECT (ffmpegdec, "already alloc'ed output buffer for frame");
1070 gst_video_codec_frame_unref (frame);
1075 GST_WARNING_OBJECT (ffmpegdec, "Couldn't get codec frame !");
1081 picture_changed (GstFFMpegVidDec * ffmpegdec, AVFrame * picture,
1084 gint pic_field_order = 0;
1087 pic_field_order = ffmpegdec->pic_field_order;
1088 } else if (picture->interlaced_frame) {
1089 if (picture->repeat_pict)
1090 pic_field_order |= GST_VIDEO_BUFFER_FLAG_RFF;
1091 if (picture->top_field_first)
1092 pic_field_order |= GST_VIDEO_BUFFER_FLAG_TFF;
1095 return !(ffmpegdec->pic_width == picture->width
1096 && ffmpegdec->pic_height == picture->height
1097 && ffmpegdec->pic_pix_fmt == picture->format
1098 && ffmpegdec->pic_par_n == picture->sample_aspect_ratio.num
1099 && ffmpegdec->pic_par_d == picture->sample_aspect_ratio.den
1100 && ffmpegdec->pic_interlaced == picture->interlaced_frame
1101 && ffmpegdec->pic_field_order == pic_field_order
1102 && ffmpegdec->cur_multiview_mode == ffmpegdec->picture_multiview_mode
1103 && ffmpegdec->cur_multiview_flags == ffmpegdec->picture_multiview_flags);
1107 context_changed (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context)
1109 return !(ffmpegdec->ctx_ticks == context->ticks_per_frame
1110 && ffmpegdec->ctx_time_n == context->time_base.num
1111 && ffmpegdec->ctx_time_d == context->time_base.den);
1115 update_video_context (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context,
1116 AVFrame * picture, gboolean one_field)
1118 gint pic_field_order = 0;
1120 if (picture->interlaced_frame) {
1121 if (picture->repeat_pict)
1122 pic_field_order |= GST_VIDEO_BUFFER_FLAG_RFF;
1123 if (picture->top_field_first)
1124 pic_field_order |= GST_VIDEO_BUFFER_FLAG_TFF;
1127 if (!picture_changed (ffmpegdec, picture, one_field)
1128 && !context_changed (ffmpegdec, context))
1131 GST_DEBUG_OBJECT (ffmpegdec,
1132 "Renegotiating video from %dx%d@ %d:%d PAR %d/%d fps pixfmt %d to %dx%d@ %d:%d PAR %d/%d fps pixfmt %d",
1133 ffmpegdec->pic_width, ffmpegdec->pic_height,
1134 ffmpegdec->pic_par_n, ffmpegdec->pic_par_d,
1135 ffmpegdec->ctx_time_n, ffmpegdec->ctx_time_d,
1136 ffmpegdec->pic_pix_fmt,
1137 picture->width, picture->height,
1138 picture->sample_aspect_ratio.num,
1139 picture->sample_aspect_ratio.den,
1140 context->time_base.num, context->time_base.den, picture->format);
1142 ffmpegdec->pic_pix_fmt = picture->format;
1143 ffmpegdec->pic_width = picture->width;
1144 ffmpegdec->pic_height = picture->height;
1145 ffmpegdec->pic_par_n = picture->sample_aspect_ratio.num;
1146 ffmpegdec->pic_par_d = picture->sample_aspect_ratio.den;
1147 ffmpegdec->cur_multiview_mode = ffmpegdec->picture_multiview_mode;
1148 ffmpegdec->cur_multiview_flags = ffmpegdec->picture_multiview_flags;
1150 /* Remember if we have interlaced content and the field order changed
1151 * at least once. If that happens, we must be interlace-mode=mixed
1153 if (ffmpegdec->pic_field_order_changed ||
1154 (ffmpegdec->pic_field_order != pic_field_order &&
1155 ffmpegdec->pic_interlaced))
1156 ffmpegdec->pic_field_order_changed = TRUE;
1158 ffmpegdec->pic_field_order = pic_field_order;
1159 ffmpegdec->pic_interlaced = picture->interlaced_frame;
1161 if (!ffmpegdec->pic_interlaced)
1162 ffmpegdec->pic_field_order_changed = FALSE;
1164 ffmpegdec->ctx_ticks = context->ticks_per_frame;
1165 ffmpegdec->ctx_time_n = context->time_base.num;
1166 ffmpegdec->ctx_time_d = context->time_base.den;
1172 gst_ffmpegviddec_update_par (GstFFMpegVidDec * ffmpegdec,
1173 GstVideoInfo * in_info, GstVideoInfo * out_info)
1175 gboolean demuxer_par_set = FALSE;
1176 gboolean decoder_par_set = FALSE;
1177 gint demuxer_num = 1, demuxer_denom = 1;
1178 gint decoder_num = 1, decoder_denom = 1;
1179 GstVideoCodecFrame *out_frame;
1180 GstFFMpegVidDecVideoFrame *out_dframe;
1182 if (in_info->par_n && in_info->par_d) {
1183 demuxer_num = in_info->par_n;
1184 demuxer_denom = in_info->par_d;
1185 demuxer_par_set = TRUE;
1186 GST_DEBUG_OBJECT (ffmpegdec, "Demuxer PAR: %d:%d", demuxer_num,
1190 if (ffmpegdec->pic_par_n && ffmpegdec->pic_par_d) {
1191 decoder_num = ffmpegdec->pic_par_n;
1192 decoder_denom = ffmpegdec->pic_par_d;
1193 decoder_par_set = TRUE;
1194 GST_DEBUG_OBJECT (ffmpegdec, "Decoder PAR: %d:%d", decoder_num,
1198 if (!demuxer_par_set && !decoder_par_set)
1201 if (demuxer_par_set && !decoder_par_set)
1202 goto use_demuxer_par;
1204 if (decoder_par_set && !demuxer_par_set)
1205 goto use_decoder_par;
1207 /* Special case for some encoders which provide an 1:2 pixel aspect ratio
1208 * for HEVC interlaced content, possibly to work around decoders that don't
1209 * support field-based interlacing. Add some defensive checks to check for
1210 * a "common" aspect ratio. */
1211 out_dframe = ffmpegdec->picture->opaque;
1212 out_frame = out_dframe->frame;
1214 if (demuxer_num == 1 && demuxer_denom == 1 &&
1215 decoder_num == 1 && decoder_denom == 2 &&
1216 GST_BUFFER_FLAG_IS_SET (out_frame->input_buffer,
1217 GST_VIDEO_BUFFER_FLAG_ONEFIELD) &&
1218 gst_video_is_common_aspect_ratio (ffmpegdec->pic_width,
1219 ffmpegdec->pic_height, 1, 2) &&
1220 !gst_video_is_common_aspect_ratio (ffmpegdec->pic_width,
1221 ffmpegdec->pic_height, 1, 1)) {
1222 GST_WARNING_OBJECT (ffmpegdec,
1223 "PAR 1/2 makes the aspect ratio of "
1224 "a %d x %d frame uncommon. Switching to 1/1",
1225 ffmpegdec->pic_width, ffmpegdec->pic_height);
1226 goto use_demuxer_par;
1229 /* Both the demuxer and the decoder provide a PAR. If one of
1230 * the two PARs is 1:1 and the other one is not, use the one
1231 * that is not 1:1. */
1232 if (demuxer_num == demuxer_denom && decoder_num != decoder_denom) {
1233 goto use_decoder_par;
1236 if (decoder_num == decoder_denom && demuxer_num != demuxer_denom) {
1237 goto use_demuxer_par;
1240 /* Both PARs are non-1:1, so use the PAR provided by the demuxer */
1241 goto use_demuxer_par;
1245 GST_DEBUG_OBJECT (ffmpegdec,
1246 "Setting decoder provided pixel-aspect-ratio of %u:%u", decoder_num,
1248 out_info->par_n = decoder_num;
1249 out_info->par_d = decoder_denom;
1254 GST_DEBUG_OBJECT (ffmpegdec,
1255 "Setting demuxer provided pixel-aspect-ratio of %u:%u", demuxer_num,
1257 out_info->par_n = demuxer_num;
1258 out_info->par_d = demuxer_denom;
1263 GST_DEBUG_OBJECT (ffmpegdec,
1264 "Neither demuxer nor codec provide a pixel-aspect-ratio");
1265 out_info->par_n = 1;
1266 out_info->par_d = 1;
1271 static GstVideoMultiviewMode
1272 stereo_av_to_gst (enum AVStereo3DType type)
1275 case AV_STEREO3D_SIDEBYSIDE:
1276 return GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
1277 case AV_STEREO3D_TOPBOTTOM:
1278 return GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
1279 case AV_STEREO3D_FRAMESEQUENCE:
1280 return GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME;
1281 case AV_STEREO3D_CHECKERBOARD:
1282 return GST_VIDEO_MULTIVIEW_MODE_CHECKERBOARD;
1283 case AV_STEREO3D_SIDEBYSIDE_QUINCUNX:
1284 return GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX;
1285 case AV_STEREO3D_LINES:
1286 return GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED;
1287 case AV_STEREO3D_COLUMNS:
1288 return GST_VIDEO_MULTIVIEW_MODE_COLUMN_INTERLEAVED;
1293 return GST_VIDEO_MULTIVIEW_MODE_NONE;
1297 mastering_display_metadata_av_to_gst (AVMasteringDisplayMetadata * av,
1298 GstVideoMasteringDisplayInfo * gst)
1300 const guint64 chroma_scale = 50000;
1301 const guint64 luma_scale = 10000;
1304 /* Use only complete mastering meta */
1305 if (!av->has_primaries || !av->has_luminance)
1308 for (i = 0; i < G_N_ELEMENTS (gst->display_primaries); i++) {
1309 gst->display_primaries[i].x = (guint16) gst_util_uint64_scale (chroma_scale,
1310 av->display_primaries[i][0].num, av->display_primaries[i][0].den);
1311 gst->display_primaries[i].y = (guint16) gst_util_uint64_scale (chroma_scale,
1312 av->display_primaries[i][1].num, av->display_primaries[i][1].den);
1315 gst->white_point.x = (guint16) gst_util_uint64_scale (chroma_scale,
1316 av->white_point[0].num, av->white_point[0].den);
1317 gst->white_point.y = (guint16) gst_util_uint64_scale (chroma_scale,
1318 av->white_point[1].num, av->white_point[1].den);
1321 gst->max_display_mastering_luminance =
1322 (guint32) gst_util_uint64_scale (luma_scale,
1323 av->max_luminance.num, av->max_luminance.den);
1324 gst->min_display_mastering_luminance =
1325 (guint32) gst_util_uint64_scale (luma_scale,
1326 av->min_luminance.num, av->min_luminance.den);
1332 content_light_metadata_av_to_gst (AVContentLightMetadata * av,
1333 GstVideoContentLightLevel * gst)
1335 gst->max_content_light_level = av->MaxCLL;
1336 gst->max_frame_average_light_level = av->MaxFALL;
1342 gst_ffmpegviddec_negotiate (GstFFMpegVidDec * ffmpegdec,
1343 AVCodecContext * context, AVFrame * picture, GstBufferFlags flags)
1346 GstVideoInfo *in_info, *out_info;
1347 GstVideoCodecState *output_state;
1349 GstClockTime latency;
1351 GstVideoInterlaceMode interlace_mode;
1353 gboolean one_field = ! !(flags & GST_VIDEO_BUFFER_FLAG_ONEFIELD);
1355 if (!update_video_context (ffmpegdec, context, picture, one_field))
1358 caps_height = ffmpegdec->pic_height;
1360 fmt = gst_ffmpeg_pixfmt_to_videoformat (ffmpegdec->pic_pix_fmt);
1361 if (G_UNLIKELY (fmt == GST_VIDEO_FORMAT_UNKNOWN))
1362 goto unknown_format;
1364 /* set the interlaced flag */
1365 in_s = gst_caps_get_structure (ffmpegdec->input_state->caps, 0);
1366 if (flags & GST_VIDEO_BUFFER_FLAG_ONEFIELD) {
1367 /* TODO: we don't get that information from ffmpeg, so copy it from
1369 interlace_mode = GST_VIDEO_INTERLACE_MODE_ALTERNATE;
1370 caps_height = 2 * caps_height;
1371 } else if (!gst_structure_has_field (in_s, "interlace-mode")) {
1372 if (ffmpegdec->pic_interlaced) {
1373 if (ffmpegdec->pic_field_order_changed ||
1374 (ffmpegdec->pic_field_order & GST_VIDEO_BUFFER_FLAG_RFF)) {
1375 interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED;
1377 interlace_mode = GST_VIDEO_INTERLACE_MODE_INTERLEAVED;
1380 interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
1385 gst_video_info_from_caps (&info, ffmpegdec->input_state->caps);
1386 interlace_mode = info.interlace_mode;
1389 if (interlace_mode == GST_VIDEO_INTERLACE_MODE_ALTERNATE)
1391 gst_video_decoder_set_interlaced_output_state (GST_VIDEO_DECODER
1392 (ffmpegdec), fmt, interlace_mode, ffmpegdec->pic_width, caps_height,
1393 ffmpegdec->input_state);
1396 gst_video_decoder_set_output_state (GST_VIDEO_DECODER
1397 (ffmpegdec), fmt, ffmpegdec->pic_width, caps_height,
1398 ffmpegdec->input_state);
1399 if (ffmpegdec->output_state)
1400 gst_video_codec_state_unref (ffmpegdec->output_state);
1401 ffmpegdec->output_state = output_state;
1403 in_info = &ffmpegdec->input_state->info;
1404 out_info = &ffmpegdec->output_state->info;
1406 out_info->interlace_mode = interlace_mode;
1407 if (!gst_structure_has_field (in_s, "interlace-mode")
1408 && interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED) {
1409 if ((ffmpegdec->pic_field_order & GST_VIDEO_BUFFER_FLAG_TFF))
1410 GST_VIDEO_INFO_FIELD_ORDER (out_info) =
1411 GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST;
1413 GST_VIDEO_INFO_FIELD_ORDER (out_info) =
1414 GST_VIDEO_FIELD_ORDER_BOTTOM_FIELD_FIRST;
1417 if (!gst_structure_has_field (in_s, "chroma-site")) {
1418 switch (context->chroma_sample_location) {
1419 case AVCHROMA_LOC_LEFT:
1420 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_MPEG2;
1422 case AVCHROMA_LOC_CENTER:
1423 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_JPEG;
1425 case AVCHROMA_LOC_TOPLEFT:
1426 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_DV;
1428 case AVCHROMA_LOC_TOP:
1429 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_V_COSITED;
1436 if (!gst_structure_has_field (in_s, "colorimetry")
1437 || in_info->colorimetry.primaries == GST_VIDEO_COLOR_PRIMARIES_UNKNOWN) {
1438 out_info->colorimetry.primaries =
1439 gst_video_color_primaries_from_iso (context->color_primaries);
1442 if (!gst_structure_has_field (in_s, "colorimetry")
1443 || in_info->colorimetry.transfer == GST_VIDEO_TRANSFER_UNKNOWN) {
1444 out_info->colorimetry.transfer =
1445 gst_video_transfer_function_from_iso (context->color_trc);
1448 if (!gst_structure_has_field (in_s, "colorimetry")
1449 || in_info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_UNKNOWN) {
1450 out_info->colorimetry.matrix =
1451 gst_video_color_matrix_from_iso (context->colorspace);
1454 if (!gst_structure_has_field (in_s, "colorimetry")
1455 || in_info->colorimetry.range == GST_VIDEO_COLOR_RANGE_UNKNOWN) {
1456 if (context->color_range == AVCOL_RANGE_JPEG) {
1457 out_info->colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255;
1458 } else if (context->color_range == AVCOL_RANGE_MPEG) {
1459 out_info->colorimetry.range = GST_VIDEO_COLOR_RANGE_16_235;
1461 out_info->colorimetry.range = GST_VIDEO_COLOR_RANGE_UNKNOWN;
1465 /* try to find a good framerate */
1466 if ((in_info->fps_d && in_info->fps_n)) {
1467 /* take framerate from input when it was specified (#313970) */
1468 fps_n = in_info->fps_n;
1469 fps_d = in_info->fps_d;
1471 fps_n = ffmpegdec->ctx_time_d;
1472 fps_d = ffmpegdec->ctx_time_n * ffmpegdec->ctx_ticks;
1475 GST_LOG_OBJECT (ffmpegdec, "invalid framerate: %d/0, -> %d/1", fps_n,
1479 if (gst_util_fraction_compare (fps_n, fps_d, 1000, 1) > 0) {
1480 GST_LOG_OBJECT (ffmpegdec, "excessive framerate: %d/%d, -> 0/1", fps_n,
1487 if (GST_VIDEO_INFO_FLAG_IS_SET (in_info, GST_VIDEO_FLAG_VARIABLE_FPS)) {
1488 GST_LOG_OBJECT (ffmpegdec, "setting framerate: %d/%d", in_info->fps_n,
1490 out_info->fps_n = in_info->fps_n;
1491 out_info->fps_d = in_info->fps_d;
1493 GST_LOG_OBJECT (ffmpegdec, "setting framerate: %d/%d", fps_n, fps_d);
1494 out_info->fps_n = fps_n;
1495 out_info->fps_d = fps_d;
1498 /* calculate and update par now */
1499 gst_ffmpegviddec_update_par (ffmpegdec, in_info, out_info);
1501 GST_VIDEO_INFO_MULTIVIEW_MODE (out_info) = ffmpegdec->cur_multiview_mode;
1502 GST_VIDEO_INFO_MULTIVIEW_FLAGS (out_info) = ffmpegdec->cur_multiview_flags;
1504 /* To passing HDR information to caps directly */
1505 if (output_state->caps == NULL) {
1506 output_state->caps = gst_video_info_to_caps (out_info);
1508 output_state->caps = gst_caps_make_writable (output_state->caps);
1511 if (flags & GST_VIDEO_BUFFER_FLAG_ONEFIELD) {
1512 /* TODO: we don't get that information from ffmpeg, so copy it from
1514 gst_caps_features_add (gst_caps_get_features (ffmpegdec->output_state->caps,
1515 0), GST_CAPS_FEATURE_FORMAT_INTERLACED);
1518 if (!gst_structure_has_field (in_s, "mastering-display-info")) {
1519 AVFrameSideData *sd = av_frame_get_side_data (picture,
1520 AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
1521 GstVideoMasteringDisplayInfo minfo;
1524 && mastering_display_metadata_av_to_gst ((AVMasteringDisplayMetadata *)
1525 sd->data, &minfo)) {
1526 GST_LOG_OBJECT (ffmpegdec, "update mastering display info: "
1531 "max_luminance(%u) "
1532 "min_luminance(%u) ",
1533 minfo.display_primaries[0].x, minfo.display_primaries[0].y,
1534 minfo.display_primaries[1].x, minfo.display_primaries[1].y,
1535 minfo.display_primaries[2].x, minfo.display_primaries[2].y,
1536 minfo.white_point.x, minfo.white_point.y,
1537 minfo.max_display_mastering_luminance,
1538 minfo.min_display_mastering_luminance);
1540 if (!gst_video_mastering_display_info_add_to_caps (&minfo,
1541 output_state->caps)) {
1542 GST_WARNING_OBJECT (ffmpegdec,
1543 "Couldn't set mastering display info to caps");
1548 if (!gst_structure_has_field (in_s, "content-light-level")) {
1549 AVFrameSideData *sd = av_frame_get_side_data (picture,
1550 AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
1551 GstVideoContentLightLevel cll;
1553 if (sd && content_light_metadata_av_to_gst ((AVContentLightMetadata *)
1555 GST_LOG_OBJECT (ffmpegdec, "update content light level: "
1556 "maxCLL:(%u), maxFALL:(%u)", cll.max_content_light_level,
1557 cll.max_frame_average_light_level);
1559 if (!gst_video_content_light_level_add_to_caps (&cll, output_state->caps)) {
1560 GST_WARNING_OBJECT (ffmpegdec,
1561 "Couldn't set content light level to caps");
1566 if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (ffmpegdec)))
1567 goto negotiate_failed;
1569 /* The decoder is configured, we now know the true latency */
1572 gst_util_uint64_scale_ceil (ffmpegdec->context->has_b_frames *
1573 GST_SECOND, fps_d, fps_n);
1574 if (ffmpegdec->context->thread_type & FF_THREAD_FRAME) {
1576 gst_util_uint64_scale_ceil (ffmpegdec->context->thread_count *
1577 GST_SECOND, fps_d, fps_n);
1579 gst_video_decoder_set_latency (GST_VIDEO_DECODER (ffmpegdec), latency,
1588 GST_ERROR_OBJECT (ffmpegdec,
1589 "decoder requires a video format unsupported by GStreamer");
1594 /* Reset so we try again next time even if force==FALSE */
1595 ffmpegdec->pic_pix_fmt = 0;
1596 ffmpegdec->pic_width = 0;
1597 ffmpegdec->pic_height = 0;
1598 ffmpegdec->pic_par_n = 0;
1599 ffmpegdec->pic_par_d = 0;
1600 ffmpegdec->pic_interlaced = 0;
1601 ffmpegdec->pic_field_order = 0;
1602 ffmpegdec->pic_field_order_changed = FALSE;
1603 ffmpegdec->ctx_ticks = 0;
1604 ffmpegdec->ctx_time_n = 0;
1605 ffmpegdec->ctx_time_d = 0;
1607 GST_ERROR_OBJECT (ffmpegdec, "negotiation failed");
1612 /* perform qos calculations before decoding the next frame.
1614 * Sets the skip_frame flag and if things are really bad, skips to the next
1619 gst_ffmpegviddec_do_qos (GstFFMpegVidDec * ffmpegdec,
1620 GstVideoCodecFrame * frame, gboolean * mode_switch)
1622 GstClockTimeDiff diff;
1623 GstSegmentFlags skip_flags =
1624 GST_VIDEO_DECODER_INPUT_SEGMENT (ffmpegdec).flags;
1626 *mode_switch = FALSE;
1631 if (skip_flags & GST_SEGMENT_FLAG_TRICKMODE_KEY_UNITS) {
1632 ffmpegdec->context->skip_frame = AVDISCARD_NONKEY;
1633 *mode_switch = TRUE;
1634 } else if (skip_flags & GST_SEGMENT_FLAG_TRICKMODE) {
1635 ffmpegdec->context->skip_frame = AVDISCARD_NONREF;
1636 *mode_switch = TRUE;
1639 if (*mode_switch == TRUE) {
1640 /* We've already switched mode, we can return straight away
1641 * without any further calculation */
1646 gst_video_decoder_get_max_decode_time (GST_VIDEO_DECODER (ffmpegdec),
1649 /* if we don't have timing info, then we don't do QoS */
1650 if (G_UNLIKELY (diff == G_MAXINT64)) {
1651 /* Ensure the skipping strategy is the default one */
1652 ffmpegdec->context->skip_frame = ffmpegdec->skip_frame;
1656 GST_DEBUG_OBJECT (ffmpegdec, "decoding time %" G_GINT64_FORMAT, diff);
1658 if (diff > 0 && ffmpegdec->context->skip_frame != AVDISCARD_DEFAULT) {
1659 ffmpegdec->context->skip_frame = AVDISCARD_DEFAULT;
1660 *mode_switch = TRUE;
1661 GST_DEBUG_OBJECT (ffmpegdec, "QOS: normal mode");
1664 else if (diff <= 0 && ffmpegdec->context->skip_frame != AVDISCARD_NONREF) {
1665 ffmpegdec->context->skip_frame = AVDISCARD_NONREF;
1666 *mode_switch = TRUE;
1667 GST_DEBUG_OBJECT (ffmpegdec,
1668 "QOS: hurry up, diff %" G_GINT64_FORMAT " >= 0", diff);
1672 /* get an outbuf buffer with the current picture */
1673 static GstFlowReturn
1674 get_output_buffer (GstFFMpegVidDec * ffmpegdec, GstVideoCodecFrame * frame)
1676 GstFlowReturn ret = GST_FLOW_OK;
1677 AVFrame pic, *outpic;
1678 GstVideoFrame vframe;
1682 GST_LOG_OBJECT (ffmpegdec, "get output buffer");
1684 if (!ffmpegdec->output_state)
1685 goto not_negotiated;
1688 gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (ffmpegdec),
1690 if (G_UNLIKELY (ret != GST_FLOW_OK))
1693 /* original ffmpeg code does not handle odd sizes correctly.
1694 * This patched up version does */
1695 /* Fill avpicture */
1696 info = &ffmpegdec->output_state->info;
1697 if (!gst_video_frame_map (&vframe, info, frame->output_buffer,
1698 GST_MAP_READ | GST_MAP_WRITE))
1701 memset (&pic, 0, sizeof (pic));
1702 pic.format = ffmpegdec->pic_pix_fmt;
1703 pic.width = GST_VIDEO_FRAME_WIDTH (&vframe);
1704 pic.height = GST_VIDEO_FRAME_HEIGHT (&vframe);
1705 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
1706 if (c < GST_VIDEO_INFO_N_PLANES (info)) {
1707 pic.data[c] = GST_VIDEO_FRAME_PLANE_DATA (&vframe, c);
1708 pic.linesize[c] = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, c);
1709 GST_LOG_OBJECT (ffmpegdec, "[%i] linesize %d, data %p", c,
1710 pic.linesize[c], pic.data[c]);
1713 pic.linesize[c] = 0;
1717 outpic = ffmpegdec->picture;
1719 if (av_frame_copy (&pic, outpic) != 0) {
1720 GST_ERROR_OBJECT (ffmpegdec, "Failed to copy output frame");
1721 ret = GST_FLOW_ERROR;
1724 gst_video_frame_unmap (&vframe);
1726 ffmpegdec->picture->reordered_opaque = -1;
1733 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, FAILED,
1734 ("Unable to allocate memory"),
1735 ("The downstream pool failed to allocated buffer."));
1740 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, OPEN_READ_WRITE,
1741 ("Cannot access memory for read and write operation."),
1742 ("The video memory allocated from downstream pool could not mapped for"
1743 "read and write."));
1748 GST_DEBUG_OBJECT (ffmpegdec, "not negotiated");
1749 return GST_FLOW_NOT_NEGOTIATED;
1754 gst_avpacket_init (AVPacket * packet, guint8 * data, guint size)
1756 memset (packet, 0, sizeof (AVPacket));
1757 packet->data = data;
1758 packet->size = size;
1762 * Returns: whether a frame was decoded
1765 gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
1766 GstVideoCodecFrame * frame, GstFlowReturn * ret)
1769 gboolean got_frame = FALSE;
1770 gboolean mode_switch;
1771 GstVideoCodecFrame *out_frame;
1772 GstFFMpegVidDecVideoFrame *out_dframe;
1773 GstBufferPool *pool;
1777 /* in case we skip frames */
1778 ffmpegdec->picture->pict_type = -1;
1780 /* run QoS code, we don't stop decoding the frame when we are late because
1781 * else we might skip a reference frame */
1782 gst_ffmpegviddec_do_qos (ffmpegdec, frame, &mode_switch);
1784 /* FFmpeg might request new buffer from other threads.
1785 * Release lock here */
1786 GST_VIDEO_DECODER_STREAM_UNLOCK (ffmpegdec);
1787 res = avcodec_receive_frame (ffmpegdec->context, ffmpegdec->picture);
1788 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
1790 /* No frames available at this time */
1791 if (res == AVERROR (EAGAIN)) {
1792 GST_DEBUG_OBJECT (ffmpegdec, "Need more data");
1794 } else if (res == AVERROR_EOF) {
1795 *ret = GST_FLOW_EOS;
1796 GST_DEBUG_OBJECT (ffmpegdec, "Context was entirely flushed");
1798 } else if (res < 0) {
1799 GST_VIDEO_DECODER_ERROR (ffmpegdec, 1, STREAM, DECODE, (NULL),
1800 ("Video decoding error"), *ret);
1806 /* get the output picture timing info again */
1807 out_dframe = ffmpegdec->picture->opaque;
1808 out_frame = gst_video_codec_frame_ref (out_dframe->frame);
1810 /* also give back a buffer allocated by the frame, if any */
1811 gst_buffer_replace (&out_frame->output_buffer, out_dframe->buffer);
1812 gst_buffer_replace (&out_dframe->buffer, NULL);
1814 /* Extract auxilliary info not stored in the main AVframe */
1816 GstVideoInfo *in_info = &ffmpegdec->input_state->info;
1817 /* Take multiview mode from upstream if present */
1818 ffmpegdec->picture_multiview_mode = GST_VIDEO_INFO_MULTIVIEW_MODE (in_info);
1819 ffmpegdec->picture_multiview_flags =
1820 GST_VIDEO_INFO_MULTIVIEW_FLAGS (in_info);
1822 /* Otherwise, see if there's info in the frame */
1823 if (ffmpegdec->picture_multiview_mode == GST_VIDEO_MULTIVIEW_MODE_NONE) {
1824 AVFrameSideData *side_data =
1825 av_frame_get_side_data (ffmpegdec->picture, AV_FRAME_DATA_STEREO3D);
1827 AVStereo3D *stereo = (AVStereo3D *) side_data->data;
1828 ffmpegdec->picture_multiview_mode = stereo_av_to_gst (stereo->type);
1829 if (stereo->flags & AV_STEREO3D_FLAG_INVERT) {
1830 ffmpegdec->picture_multiview_flags =
1831 GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
1833 ffmpegdec->picture_multiview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
1839 GST_DEBUG_OBJECT (ffmpegdec,
1840 "pts %" G_GUINT64_FORMAT " duration %" G_GUINT64_FORMAT,
1841 out_frame->pts, out_frame->duration);
1842 GST_DEBUG_OBJECT (ffmpegdec, "picture: pts %" G_GUINT64_FORMAT,
1843 (guint64) ffmpegdec->picture->pts);
1844 GST_DEBUG_OBJECT (ffmpegdec, "picture: num %d",
1845 ffmpegdec->picture->coded_picture_number);
1846 GST_DEBUG_OBJECT (ffmpegdec, "picture: display %d",
1847 ffmpegdec->picture->display_picture_number);
1848 GST_DEBUG_OBJECT (ffmpegdec, "picture: opaque %p",
1849 ffmpegdec->picture->opaque);
1850 GST_DEBUG_OBJECT (ffmpegdec, "picture: reordered opaque %" G_GUINT64_FORMAT,
1851 (guint64) ffmpegdec->picture->reordered_opaque);
1852 GST_DEBUG_OBJECT (ffmpegdec, "repeat_pict:%d",
1853 ffmpegdec->picture->repeat_pict);
1854 GST_DEBUG_OBJECT (ffmpegdec, "corrupted frame: %d",
1855 ! !(ffmpegdec->picture->flags & AV_FRAME_FLAG_CORRUPT));
1857 if (!gst_ffmpegviddec_negotiate (ffmpegdec, ffmpegdec->context,
1858 ffmpegdec->picture, GST_BUFFER_FLAGS (out_frame->input_buffer)))
1859 goto negotiation_error;
1861 pool = gst_video_decoder_get_buffer_pool (GST_VIDEO_DECODER (ffmpegdec));
1862 if (G_UNLIKELY (out_frame->output_buffer == NULL)) {
1863 *ret = get_output_buffer (ffmpegdec, out_frame);
1864 } else if (G_UNLIKELY (out_frame->output_buffer->pool != pool)) {
1865 GstBuffer *tmp = out_frame->output_buffer;
1866 out_frame->output_buffer = NULL;
1867 *ret = get_output_buffer (ffmpegdec, out_frame);
1868 gst_buffer_unref (tmp);
1870 #ifndef G_DISABLE_ASSERT
1872 GstVideoMeta *vmeta = gst_buffer_get_video_meta (out_frame->output_buffer);
1874 GstVideoInfo *info = &ffmpegdec->output_state->info;
1875 g_assert ((gint) vmeta->width == GST_VIDEO_INFO_WIDTH (info));
1876 g_assert ((gint) vmeta->height == GST_VIDEO_INFO_HEIGHT (info));
1880 gst_object_unref (pool);
1882 if (G_UNLIKELY (*ret != GST_FLOW_OK))
1885 /* Mark corrupted frames as corrupted */
1886 if (ffmpegdec->picture->flags & AV_FRAME_FLAG_CORRUPT)
1887 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_BUFFER_FLAG_CORRUPTED);
1889 if (ffmpegdec->pic_interlaced) {
1890 /* set interlaced flags */
1891 if (ffmpegdec->picture->repeat_pict)
1892 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_VIDEO_BUFFER_FLAG_RFF);
1893 if (ffmpegdec->picture->top_field_first)
1894 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_VIDEO_BUFFER_FLAG_TFF);
1895 if (ffmpegdec->picture->interlaced_frame)
1896 GST_BUFFER_FLAG_SET (out_frame->output_buffer,
1897 GST_VIDEO_BUFFER_FLAG_INTERLACED);
1901 AVFrameSideData *side_data =
1902 av_frame_get_side_data (ffmpegdec->picture, AV_FRAME_DATA_A53_CC);
1904 GST_LOG_OBJECT (ffmpegdec,
1905 "Found CC side data of type AV_FRAME_DATA_A53_CC, size %d",
1906 (int) side_data->size);
1907 GST_MEMDUMP ("A53 CC", side_data->data, side_data->size);
1909 /* do not add closed caption meta if it already exists */
1910 if (!gst_buffer_get_meta (out_frame->input_buffer,
1911 GST_VIDEO_CAPTION_META_API_TYPE)) {
1912 out_frame->output_buffer =
1913 gst_buffer_make_writable (out_frame->output_buffer);
1914 gst_buffer_add_video_caption_meta (out_frame->output_buffer,
1915 GST_VIDEO_CAPTION_TYPE_CEA708_RAW, side_data->data,
1918 GST_LOG_OBJECT (ffmpegdec,
1919 "Closed caption meta already exists: will not add new caption meta");
1925 /* so we decoded this frame, frames preceding it in decoding order
1926 * that still do not have a buffer allocated seem rather useless,
1927 * and can be discarded, due to e.g. misparsed bogus frame
1928 * or non-keyframe in skipped decoding, ...
1929 * In any case, not likely to be seen again, so discard those,
1930 * before they pile up and/or mess with timestamping */
1933 GstVideoDecoder *dec = GST_VIDEO_DECODER (ffmpegdec);
1934 gboolean old = TRUE;
1936 ol = l = gst_video_decoder_get_frames (dec);
1938 GstVideoCodecFrame *tmp = l->data;
1943 if (old && GST_VIDEO_CODEC_FRAME_IS_DECODE_ONLY (tmp)) {
1944 GST_LOG_OBJECT (dec,
1945 "discarding ghost frame %p (#%d) PTS:%" GST_TIME_FORMAT " DTS:%"
1946 GST_TIME_FORMAT, tmp, tmp->system_frame_number,
1947 GST_TIME_ARGS (tmp->pts), GST_TIME_ARGS (tmp->dts));
1948 /* drop extra ref and remove from frame list */
1949 GST_VIDEO_CODEC_FRAME_FLAG_UNSET (tmp,
1950 GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
1951 gst_video_decoder_release_frame (dec, tmp);
1953 /* drop extra ref we got */
1954 gst_video_codec_frame_unref (tmp);
1961 av_frame_unref (ffmpegdec->picture);
1964 GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame,
1965 GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
1967 if (gst_video_decoder_get_subframe_mode (GST_VIDEO_DECODER (ffmpegdec)))
1968 gst_video_decoder_have_last_subframe (GST_VIDEO_DECODER (ffmpegdec),
1971 /* FIXME: Ideally we would remap the buffer read-only now before pushing but
1972 * libav might still have a reference to it!
1974 if (GST_BUFFER_FLAG_IS_SET (out_frame->input_buffer,
1975 GST_VIDEO_BUFFER_FLAG_ONEFIELD)) {
1976 GST_BUFFER_FLAG_SET (out_frame->output_buffer,
1977 GST_VIDEO_BUFFER_FLAG_ONEFIELD);
1978 if (GST_BUFFER_FLAG_IS_SET (out_frame->input_buffer,
1979 GST_VIDEO_BUFFER_FLAG_TFF)) {
1980 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_VIDEO_BUFFER_FLAG_TFF);
1984 gst_video_decoder_finish_frame (GST_VIDEO_DECODER (ffmpegdec), out_frame);
1987 GST_DEBUG_OBJECT (ffmpegdec, "return flow %s, got frame: %d",
1988 gst_flow_get_name (*ret), got_frame);
1994 GST_DEBUG_OBJECT (ffmpegdec, "no output buffer");
1995 GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame,
1996 GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED);
1997 gst_video_decoder_drop_frame (GST_VIDEO_DECODER (ffmpegdec), out_frame);
2003 gst_video_decoder_drop_frame (GST_VIDEO_DECODER (ffmpegdec), out_frame);
2004 if (GST_PAD_IS_FLUSHING (GST_VIDEO_DECODER_SRC_PAD (ffmpegdec))) {
2005 *ret = GST_FLOW_FLUSHING;
2008 GST_WARNING_OBJECT (ffmpegdec, "Error negotiating format");
2009 *ret = GST_FLOW_NOT_NEGOTIATED;
2015 /* Returns: Whether a frame was decoded */
2017 gst_ffmpegviddec_frame (GstFFMpegVidDec * ffmpegdec, GstVideoCodecFrame * frame,
2018 GstFlowReturn * ret)
2020 gboolean got_frame = FALSE;
2022 if (G_UNLIKELY (ffmpegdec->context->codec == NULL))
2026 ffmpegdec->context->frame_number++;
2028 got_frame = gst_ffmpegviddec_video_frame (ffmpegdec, frame, ret);
2035 GST_ERROR_OBJECT (ffmpegdec, "no codec context");
2036 *ret = GST_FLOW_NOT_NEGOTIATED;
2041 static GstFlowReturn
2042 gst_ffmpegviddec_drain (GstVideoDecoder * decoder)
2044 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (decoder);
2045 GstFlowReturn ret = GST_FLOW_OK;
2046 gboolean got_frame = FALSE;
2048 if (!ffmpegdec->opened)
2051 GST_VIDEO_DECODER_STREAM_UNLOCK (ffmpegdec);
2052 if (avcodec_send_packet (ffmpegdec->context, NULL)) {
2053 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
2054 goto send_packet_failed;
2056 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
2059 got_frame = gst_ffmpegviddec_frame (ffmpegdec, NULL, &ret);
2060 } while (got_frame && ret == GST_FLOW_OK);
2062 GST_VIDEO_DECODER_STREAM_UNLOCK (ffmpegdec);
2063 avcodec_flush_buffers (ffmpegdec->context);
2064 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
2066 /* FFMpeg will return AVERROR_EOF if it's internal was fully drained
2067 * then we are translating it to GST_FLOW_EOS. However, because this behavior
2068 * is fully internal stuff of this implementation and gstvideodecoder
2069 * baseclass doesn't convert this GST_FLOW_EOS to GST_FLOW_OK,
2070 * convert this flow returned here */
2071 if (ret == GST_FLOW_EOS)
2078 GST_WARNING_OBJECT (ffmpegdec, "send packet failed, could not drain decoder");
2082 static GstFlowReturn
2083 gst_ffmpegviddec_handle_frame (GstVideoDecoder * decoder,
2084 GstVideoCodecFrame * frame)
2086 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (decoder);
2091 GstFlowReturn ret = GST_FLOW_OK;
2094 GST_LOG_OBJECT (ffmpegdec,
2095 "Received new data of size %" G_GSIZE_FORMAT ", dts %" GST_TIME_FORMAT
2096 ", pts:%" GST_TIME_FORMAT ", dur:%" GST_TIME_FORMAT,
2097 gst_buffer_get_size (frame->input_buffer), GST_TIME_ARGS (frame->dts),
2098 GST_TIME_ARGS (frame->pts), GST_TIME_ARGS (frame->duration));
2100 if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
2101 GST_ELEMENT_ERROR (ffmpegdec, STREAM, DECODE, ("Decoding problem"),
2102 ("Failed to map buffer for reading"));
2103 return GST_FLOW_ERROR;
2106 /* treat frame as void until a buffer is requested for it */
2107 if (!GST_VIDEO_CODEC_FRAME_FLAG_IS_SET (frame,
2108 GST_FFMPEG_VIDEO_CODEC_FRAME_FLAG_ALLOCATED))
2109 GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
2110 GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
2115 if (size > 0 && (!GST_MEMORY_IS_ZERO_PADDED (minfo.memory)
2116 || (minfo.maxsize - minfo.size) < AV_INPUT_BUFFER_PADDING_SIZE)) {
2118 if (ffmpegdec->padded_size < size + AV_INPUT_BUFFER_PADDING_SIZE) {
2119 ffmpegdec->padded_size = size + AV_INPUT_BUFFER_PADDING_SIZE;
2120 ffmpegdec->padded = g_realloc (ffmpegdec->padded, ffmpegdec->padded_size);
2121 GST_LOG_OBJECT (ffmpegdec, "resized padding buffer to %d",
2122 ffmpegdec->padded_size);
2124 GST_CAT_TRACE_OBJECT (GST_CAT_PERFORMANCE, ffmpegdec,
2125 "Copy input to add padding");
2126 memcpy (ffmpegdec->padded, data, size);
2127 memset (ffmpegdec->padded + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
2129 data = ffmpegdec->padded;
2132 /* now decode the frame */
2133 gst_avpacket_init (&packet, data, size);
2138 if (ffmpegdec->palette) {
2141 pal = av_packet_new_side_data (&packet, AV_PKT_DATA_PALETTE,
2143 gst_buffer_extract (ffmpegdec->palette, 0, pal, AVPALETTE_SIZE);
2144 GST_DEBUG_OBJECT (ffmpegdec, "copy pal %p %p", &packet, pal);
2147 /* save reference to the timing info */
2148 ffmpegdec->context->reordered_opaque = (gint64) frame->system_frame_number;
2149 ffmpegdec->picture->reordered_opaque = (gint64) frame->system_frame_number;
2151 GST_DEBUG_OBJECT (ffmpegdec, "stored opaque values idx %d",
2152 frame->system_frame_number);
2154 /* This might call into get_buffer() from another thread,
2155 * which would cause a deadlock. Release the lock here
2156 * and taking it again later seems safe
2157 * See https://bugzilla.gnome.org/show_bug.cgi?id=726020
2159 GST_VIDEO_DECODER_STREAM_UNLOCK (ffmpegdec);
2160 if (avcodec_send_packet (ffmpegdec->context, &packet) < 0) {
2161 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
2162 av_packet_free_side_data (&packet);
2163 goto send_packet_failed;
2165 av_packet_free_side_data (&packet);
2166 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
2169 /* decode a frame of audio/video now */
2170 got_frame = gst_ffmpegviddec_frame (ffmpegdec, frame, &ret);
2172 if (ret != GST_FLOW_OK) {
2173 GST_LOG_OBJECT (ffmpegdec, "breaking because of flow ret %s",
2174 gst_flow_get_name (ret));
2177 } while (got_frame);
2180 gst_buffer_unmap (frame->input_buffer, &minfo);
2181 gst_video_codec_frame_unref (frame);
2187 GST_VIDEO_DECODER_ERROR (decoder, 1, STREAM, DECODE,
2188 ("Failed to send data for decoding"), ("Invalid input packet"), ret);
2194 gst_ffmpegviddec_start (GstVideoDecoder * decoder)
2196 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (decoder);
2197 GstFFMpegVidDecClass *oclass;
2199 oclass = GST_FFMPEGVIDDEC_GET_CLASS (ffmpegdec);
2201 GST_OBJECT_LOCK (ffmpegdec);
2202 avcodec_free_context (&ffmpegdec->context);
2203 ffmpegdec->context = avcodec_alloc_context3 (oclass->in_plugin);
2204 if (ffmpegdec->context == NULL) {
2205 GST_DEBUG_OBJECT (ffmpegdec, "Failed to set context defaults");
2206 GST_OBJECT_UNLOCK (ffmpegdec);
2209 ffmpegdec->context->opaque = ffmpegdec;
2210 GST_OBJECT_UNLOCK (ffmpegdec);
2216 gst_ffmpegviddec_stop (GstVideoDecoder * decoder)
2218 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (decoder);
2220 GST_OBJECT_LOCK (ffmpegdec);
2221 gst_ffmpegviddec_close (ffmpegdec, FALSE);
2222 GST_OBJECT_UNLOCK (ffmpegdec);
2223 g_free (ffmpegdec->padded);
2224 ffmpegdec->padded = NULL;
2225 ffmpegdec->padded_size = 0;
2226 if (ffmpegdec->input_state)
2227 gst_video_codec_state_unref (ffmpegdec->input_state);
2228 ffmpegdec->input_state = NULL;
2229 if (ffmpegdec->output_state)
2230 gst_video_codec_state_unref (ffmpegdec->output_state);
2231 ffmpegdec->output_state = NULL;
2233 if (ffmpegdec->internal_pool)
2234 gst_object_unref (ffmpegdec->internal_pool);
2235 ffmpegdec->internal_pool = NULL;
2237 ffmpegdec->pic_pix_fmt = 0;
2238 ffmpegdec->pic_width = 0;
2239 ffmpegdec->pic_height = 0;
2240 ffmpegdec->pic_par_n = 0;
2241 ffmpegdec->pic_par_d = 0;
2242 ffmpegdec->pic_interlaced = 0;
2243 ffmpegdec->pic_field_order = 0;
2244 ffmpegdec->pic_field_order_changed = FALSE;
2245 ffmpegdec->ctx_ticks = 0;
2246 ffmpegdec->ctx_time_n = 0;
2247 ffmpegdec->ctx_time_d = 0;
2249 ffmpegdec->pool_width = 0;
2250 ffmpegdec->pool_height = 0;
2251 ffmpegdec->pool_format = 0;
2256 static GstFlowReturn
2257 gst_ffmpegviddec_finish (GstVideoDecoder * decoder)
2259 GstFlowReturn flow_ret;
2261 flow_ret = gst_ffmpegviddec_drain (decoder);
2263 /* note that finish can and should clean up more drastically,
2264 * but drain is also invoked on e.g. packet loss in GAP handling */
2265 gst_ffmpegviddec_flush (decoder);
2271 gst_ffmpegviddec_flush (GstVideoDecoder * decoder)
2273 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (decoder);
2275 if (ffmpegdec->opened) {
2276 GST_LOG_OBJECT (decoder, "flushing buffers");
2277 GST_VIDEO_DECODER_STREAM_UNLOCK (ffmpegdec);
2278 avcodec_flush_buffers (ffmpegdec->context);
2279 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
2286 gst_ffmpegviddec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
2288 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (decoder);
2289 GstVideoCodecState *state;
2290 GstBufferPool *pool;
2291 guint size, min, max;
2292 GstStructure *config;
2293 gboolean have_pool, have_videometa, have_alignment, update_pool = FALSE;
2294 GstAllocator *allocator = NULL;
2295 GstAllocationParams params = DEFAULT_ALLOC_PARAM;
2297 have_pool = (gst_query_get_n_allocation_pools (query) != 0);
2299 if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
2303 state = gst_video_decoder_get_output_state (decoder);
2305 if (gst_query_get_n_allocation_params (query) > 0) {
2306 gst_query_parse_nth_allocation_param (query, 0, &allocator, ¶ms);
2307 params.align = MAX (params.align, DEFAULT_STRIDE_ALIGN);
2309 gst_query_add_allocation_param (query, allocator, ¶ms);
2312 gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
2314 /* Don't use pool that can't grow, as we don't know how many buffer we'll
2315 * need, otherwise we may stall */
2316 if (max != 0 && max < REQUIRED_POOL_MAX_BUFFERS) {
2317 gst_object_unref (pool);
2318 pool = gst_video_buffer_pool_new ();
2323 /* if there is an allocator, also drop it, as it might be the reason we
2324 * have this limit. Default will be used */
2326 gst_object_unref (allocator);
2331 config = gst_buffer_pool_get_config (pool);
2332 gst_buffer_pool_config_set_params (config, state->caps, size, min, max);
2333 gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
2336 gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
2339 gst_buffer_pool_config_add_option (config,
2340 GST_BUFFER_POOL_OPTION_VIDEO_META);
2343 gst_buffer_pool_has_option (pool, GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
2345 /* If we have videometa, we never have to copy */
2346 if (have_videometa && have_pool && have_alignment &&
2347 gst_ffmpegviddec_can_direct_render (ffmpegdec)) {
2348 GstStructure *config_copy = gst_structure_copy (config);
2350 gst_ffmpegvideodec_prepare_dr_pool (ffmpegdec, pool, &state->info,
2353 /* FIXME validate and retry */
2354 if (gst_buffer_pool_set_config (pool, config_copy)) {
2358 gst_buffer_pool_set_active (pool, TRUE);
2359 ret = gst_buffer_pool_acquire_buffer (pool, &tmp, NULL);
2360 if (ret == GST_FLOW_OK) {
2361 GstVideoMeta *vmeta = gst_buffer_get_video_meta (tmp);
2362 gboolean same_stride = TRUE;
2365 for (i = 0; i < vmeta->n_planes; i++) {
2366 if (vmeta->stride[i] != ffmpegdec->stride[i]) {
2367 same_stride = FALSE;
2372 gst_buffer_unref (tmp);
2375 if (ffmpegdec->internal_pool)
2376 gst_object_unref (ffmpegdec->internal_pool);
2377 ffmpegdec->internal_pool = gst_object_ref (pool);
2378 ffmpegdec->pool_width = GST_VIDEO_INFO_WIDTH (&state->info);
2379 ffmpegdec->pool_height =
2380 MAX (GST_VIDEO_INFO_HEIGHT (&state->info),
2381 ffmpegdec->context->coded_height);
2382 ffmpegdec->pool_info = state->info;
2383 gst_structure_free (config);
2390 if (have_videometa && ffmpegdec->internal_pool
2391 && gst_ffmpeg_pixfmt_to_videoformat (ffmpegdec->pool_format) ==
2392 GST_VIDEO_INFO_FORMAT (&state->info)
2393 && ffmpegdec->pool_width == state->info.width
2394 && ffmpegdec->pool_height == state->info.height) {
2396 gst_object_unref (pool);
2397 pool = gst_object_ref (ffmpegdec->internal_pool);
2398 gst_structure_free (config);
2403 if (!gst_buffer_pool_set_config (pool, config)) {
2404 gboolean working_pool = FALSE;
2405 config = gst_buffer_pool_get_config (pool);
2407 if (gst_buffer_pool_config_validate_params (config, state->caps, size, min,
2409 working_pool = gst_buffer_pool_set_config (pool, config);
2411 gst_structure_free (config);
2414 if (!working_pool) {
2415 gst_object_unref (pool);
2416 pool = gst_video_buffer_pool_new ();
2417 config = gst_buffer_pool_get_config (pool);
2418 gst_buffer_pool_config_set_params (config, state->caps, size, min, max);
2419 gst_buffer_pool_config_set_allocator (config, NULL, ¶ms);
2420 gst_buffer_pool_set_config (pool, config);
2428 gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
2430 gst_object_unref (pool);
2432 gst_object_unref (allocator);
2433 gst_video_codec_state_unref (state);
2439 gst_ffmpegviddec_propose_allocation (GstVideoDecoder * decoder,
2442 GstAllocationParams params;
2444 gst_allocation_params_init (¶ms);
2445 params.flags = GST_MEMORY_FLAG_ZERO_PADDED;
2446 params.align = DEFAULT_STRIDE_ALIGN;
2447 params.padding = AV_INPUT_BUFFER_PADDING_SIZE;
2448 /* we would like to have some padding so that we don't have to
2449 * memcpy. We don't suggest an allocator. */
2450 gst_query_add_allocation_param (query, NULL, ¶ms);
2452 return GST_VIDEO_DECODER_CLASS (parent_class)->propose_allocation (decoder,
2457 gst_ffmpegviddec_set_property (GObject * object,
2458 guint prop_id, const GValue * value, GParamSpec * pspec)
2460 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (object);
2464 ffmpegdec->lowres = ffmpegdec->context->lowres = g_value_get_enum (value);
2466 case PROP_SKIPFRAME:
2467 ffmpegdec->skip_frame = ffmpegdec->context->skip_frame =
2468 g_value_get_enum (value);
2470 case PROP_DIRECT_RENDERING:
2471 ffmpegdec->direct_rendering = g_value_get_boolean (value);
2473 #ifndef GST_REMOVE_DEPRECATED
2475 /* non-functional */
2478 case PROP_MAX_THREADS:
2479 ffmpegdec->max_threads = g_value_get_int (value);
2481 case PROP_OUTPUT_CORRUPT:
2482 ffmpegdec->output_corrupt = g_value_get_boolean (value);
2484 case PROP_THREAD_TYPE:
2485 ffmpegdec->thread_type = g_value_get_flags (value);
2487 case PROP_STD_COMPLIANCE:
2488 ffmpegdec->std_compliance = g_value_get_enum (value);
2491 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2497 gst_ffmpegviddec_get_property (GObject * object,
2498 guint prop_id, GValue * value, GParamSpec * pspec)
2500 GstFFMpegVidDec *ffmpegdec = GST_FFMPEGVIDDEC (object);
2504 g_value_set_enum (value, ffmpegdec->lowres);
2506 case PROP_SKIPFRAME:
2507 g_value_set_enum (value, ffmpegdec->skip_frame);
2509 case PROP_DIRECT_RENDERING:
2510 g_value_set_boolean (value, ffmpegdec->direct_rendering);
2512 #ifndef GST_REMOVE_DEPRECATED
2514 g_value_set_boolean (value, FALSE);
2517 case PROP_MAX_THREADS:
2518 g_value_set_int (value, ffmpegdec->max_threads);
2520 case PROP_OUTPUT_CORRUPT:
2521 g_value_set_boolean (value, ffmpegdec->output_corrupt);
2523 case PROP_THREAD_TYPE:
2524 g_value_set_flags (value, ffmpegdec->thread_type);
2526 case PROP_STD_COMPLIANCE:
2527 g_value_set_enum (value, ffmpegdec->std_compliance);
2530 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2536 gst_ffmpegviddec_register (GstPlugin * plugin)
2538 GTypeInfo typeinfo = {
2539 sizeof (GstFFMpegVidDecClass),
2542 (GClassInitFunc) gst_ffmpegviddec_subclass_init,
2545 sizeof (GstFFMpegVidDec),
2547 (GInstanceInitFunc) gst_ffmpegviddec_subinit,
2554 GST_LOG ("Registering decoders");
2556 while ((in_plugin = (AVCodec *) av_codec_iterate (&i))) {
2560 /* only video decoders */
2561 if (!av_codec_is_decoder (in_plugin)
2562 || in_plugin->type != AVMEDIA_TYPE_VIDEO)
2565 /* no quasi codecs, please */
2566 if (in_plugin->id == AV_CODEC_ID_RAWVIDEO ||
2567 in_plugin->id == AV_CODEC_ID_V210 ||
2568 in_plugin->id == AV_CODEC_ID_V210X ||
2569 in_plugin->id == AV_CODEC_ID_V308 ||
2570 in_plugin->id == AV_CODEC_ID_V408 ||
2571 in_plugin->id == AV_CODEC_ID_V410 ||
2572 in_plugin->id == AV_CODEC_ID_R210
2573 || in_plugin->id == AV_CODEC_ID_AYUV
2574 || in_plugin->id == AV_CODEC_ID_Y41P
2575 || in_plugin->id == AV_CODEC_ID_012V
2576 || in_plugin->id == AV_CODEC_ID_YUV4
2577 #if AV_VERSION_INT (LIBAVCODEC_VERSION_MAJOR, LIBAVCODEC_VERSION_MINOR, LIBAVCODEC_VERSION_MICRO) >= \
2578 AV_VERSION_INT (57,4,0)
2579 || in_plugin->id == AV_CODEC_ID_WRAPPED_AVFRAME
2581 || in_plugin->id == AV_CODEC_ID_ZLIB) {
2585 /* No decoders depending on external libraries (we don't build them, but
2586 * people who build against an external ffmpeg might have them.
2587 * We have native gstreamer plugins for all of those libraries anyway. */
2588 if (!strncmp (in_plugin->name, "lib", 3)) {
2590 ("Not using external library decoder %s. Use the gstreamer-native ones instead.",
2595 /* Skip hardware or hybrid (hardware with software fallback) */
2596 if ((in_plugin->capabilities & AV_CODEC_CAP_HARDWARE) ==
2597 AV_CODEC_CAP_HARDWARE) {
2599 ("Ignoring hardware decoder %s. We can't handle this outside of ffmpeg",
2604 if ((in_plugin->capabilities & AV_CODEC_CAP_HYBRID) == AV_CODEC_CAP_HYBRID) {
2606 ("Ignoring hybrid decoder %s. We can't handle this outside of ffmpeg",
2611 /* No vdpau plugins until we can figure out how to properly use them
2612 * outside of ffmpeg. */
2613 if (g_str_has_suffix (in_plugin->name, "_vdpau")) {
2615 ("Ignoring VDPAU decoder %s. We can't handle this outside of ffmpeg",
2620 if (g_str_has_suffix (in_plugin->name, "_xvmc")) {
2622 ("Ignoring XVMC decoder %s. We can't handle this outside of ffmpeg",
2627 if (strstr (in_plugin->name, "vaapi")) {
2629 ("Ignoring VAAPI decoder %s. We can't handle this outside of ffmpeg",
2634 if (g_str_has_suffix (in_plugin->name, "_qsv")) {
2636 ("Ignoring qsv decoder %s. We can't handle this outside of ffmpeg",
2641 GST_DEBUG ("Trying plugin %s [%s]", in_plugin->name, in_plugin->long_name);
2643 /* no codecs for which we're GUARANTEED to have better alternatives */
2644 /* MPEG1VIDEO : the mpeg2video decoder is preferred */
2645 /* MP1 : Use MP3 for decoding */
2646 /* MP2 : Use MP3 for decoding */
2647 /* Theora: Use libtheora based theoradec */
2648 /* CDG: use cdgdec */
2649 /* AV1: Use av1dec, dav1ddec or any of the hardware decoders.
2650 * Also ffmpeg's decoder only works with hardware support!
2652 if (!strcmp (in_plugin->name, "theora") ||
2653 !strcmp (in_plugin->name, "mpeg1video") ||
2654 strstr (in_plugin->name, "crystalhd") != NULL ||
2655 !strcmp (in_plugin->name, "ass") ||
2656 !strcmp (in_plugin->name, "srt") ||
2657 !strcmp (in_plugin->name, "pgssub") ||
2658 !strcmp (in_plugin->name, "dvdsub") ||
2659 !strcmp (in_plugin->name, "dvbsub") ||
2660 !strcmp (in_plugin->name, "cdgraphics") ||
2661 !strcmp (in_plugin->name, "av1")) {
2662 GST_LOG ("Ignoring decoder %s", in_plugin->name);
2666 /* construct the type */
2667 if (!strcmp (in_plugin->name, "hevc")) {
2668 plugin_name = g_strdup ("h265");
2670 plugin_name = g_strdup ((gchar *) in_plugin->name);
2672 g_strdelimit (plugin_name, NULL, '_');
2673 type_name = g_strdup_printf ("avdec_%s", plugin_name);
2674 g_free (plugin_name);
2676 type = g_type_from_name (type_name);
2679 /* create the gtype now */
2680 typeinfo.class_data = in_plugin;
2682 g_type_register_static (GST_TYPE_FFMPEGVIDDEC, type_name, &typeinfo,
2686 /* (Ronald) MPEG-4 gets a higher priority because it has been well-
2687 * tested and by far outperforms divxdec/xviddec - so we prefer it.
2688 * msmpeg4v3 same, as it outperforms divxdec for divx3 playback. */
2689 switch (in_plugin->id) {
2690 case AV_CODEC_ID_MPEG1VIDEO:
2691 case AV_CODEC_ID_MPEG2VIDEO:
2692 case AV_CODEC_ID_MPEG4:
2693 case AV_CODEC_ID_MSMPEG4V3:
2694 case AV_CODEC_ID_H264:
2695 case AV_CODEC_ID_HEVC:
2696 case AV_CODEC_ID_RV10:
2697 case AV_CODEC_ID_RV20:
2698 case AV_CODEC_ID_RV30:
2699 case AV_CODEC_ID_RV40:
2700 rank = GST_RANK_PRIMARY;
2702 /* DVVIDEO: we have a good dv decoder, fast on both ppc as well as x86.
2703 * They say libdv's quality is better though. leave as secondary.
2704 * note: if you change this, see the code in gstdv.c in good/ext/dv.
2706 case AV_CODEC_ID_DVVIDEO:
2707 rank = GST_RANK_SECONDARY;
2710 rank = GST_RANK_MARGINAL;
2713 if (!gst_element_register (plugin, type_name, rank, type)) {
2714 g_warning ("Failed to register %s", type_name);
2722 GST_LOG ("Finished Registering decoders");