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 #define MAX_TS_MASK 0xff
40 #define DEFAULT_LOWRES 0
41 #define DEFAULT_SKIPFRAME 0
42 #define DEFAULT_DIRECT_RENDERING TRUE
43 #define DEFAULT_DEBUG_MV FALSE
44 #define DEFAULT_MAX_THREADS 0
45 #define DEFAULT_OUTPUT_CORRUPT TRUE
46 #define REQUIRED_POOL_MAX_BUFFERS 32
47 #define DEFAULT_STRIDE_ALIGN 31
48 #define DEFAULT_ALLOC_PARAM { 0, DEFAULT_STRIDE_ALIGN, 0, 0, }
49 #define DEFAULT_THREAD_TYPE 0
56 PROP_DIRECT_RENDERING,
64 /* A number of function prototypes are given so we can refer to them later. */
65 static void gst_ffmpegviddec_base_init (GstFFMpegVidDecClass * klass);
66 static void gst_ffmpegviddec_class_init (GstFFMpegVidDecClass * klass);
67 static void gst_ffmpegviddec_init (GstFFMpegVidDec * ffmpegdec);
68 static void gst_ffmpegviddec_finalize (GObject * object);
70 static gboolean gst_ffmpegviddec_set_format (GstVideoDecoder * decoder,
71 GstVideoCodecState * state);
72 static GstFlowReturn gst_ffmpegviddec_handle_frame (GstVideoDecoder * decoder,
73 GstVideoCodecFrame * frame);
74 static gboolean gst_ffmpegviddec_start (GstVideoDecoder * decoder);
75 static gboolean gst_ffmpegviddec_stop (GstVideoDecoder * decoder);
76 static gboolean gst_ffmpegviddec_flush (GstVideoDecoder * decoder);
77 static gboolean gst_ffmpegviddec_decide_allocation (GstVideoDecoder * decoder,
79 static gboolean gst_ffmpegviddec_propose_allocation (GstVideoDecoder * decoder,
82 static void gst_ffmpegviddec_set_property (GObject * object,
83 guint prop_id, const GValue * value, GParamSpec * pspec);
84 static void gst_ffmpegviddec_get_property (GObject * object,
85 guint prop_id, GValue * value, GParamSpec * pspec);
87 static gboolean gst_ffmpegviddec_negotiate (GstFFMpegVidDec * ffmpegdec,
88 AVCodecContext * context, AVFrame * picture);
90 /* some sort of bufferpool handling, but different */
91 static int gst_ffmpegviddec_get_buffer2 (AVCodecContext * context,
92 AVFrame * picture, int flags);
94 static GstFlowReturn gst_ffmpegviddec_finish (GstVideoDecoder * decoder);
95 static GstFlowReturn gst_ffmpegviddec_drain (GstVideoDecoder * decoder);
97 static gboolean picture_changed (GstFFMpegVidDec * ffmpegdec,
99 static gboolean context_changed (GstFFMpegVidDec * ffmpegdec,
100 AVCodecContext * context);
102 #define GST_FFDEC_PARAMS_QDATA g_quark_from_static_string("avdec-params")
104 static GstElementClass *parent_class = NULL;
106 #define GST_FFMPEGVIDDEC_TYPE_LOWRES (gst_ffmpegviddec_lowres_get_type())
108 gst_ffmpegviddec_lowres_get_type (void)
110 static GType ffmpegdec_lowres_type = 0;
112 if (!ffmpegdec_lowres_type) {
113 static const GEnumValue ffmpegdec_lowres[] = {
115 {1, "1", "1/2-size"},
116 {2, "2", "1/4-size"},
120 ffmpegdec_lowres_type =
121 g_enum_register_static ("GstLibAVVidDecLowres", ffmpegdec_lowres);
124 return ffmpegdec_lowres_type;
127 #define GST_FFMPEGVIDDEC_TYPE_SKIPFRAME (gst_ffmpegviddec_skipframe_get_type())
129 gst_ffmpegviddec_skipframe_get_type (void)
131 static GType ffmpegdec_skipframe_type = 0;
133 if (!ffmpegdec_skipframe_type) {
134 static const GEnumValue ffmpegdec_skipframe[] = {
135 {0, "0", "Skip nothing"},
136 {1, "1", "Skip B-frames"},
137 {2, "2", "Skip IDCT/Dequantization"},
138 {5, "5", "Skip everything"},
142 ffmpegdec_skipframe_type =
143 g_enum_register_static ("GstLibAVVidDecSkipFrame", ffmpegdec_skipframe);
146 return ffmpegdec_skipframe_type;
149 static const GFlagsValue ffmpegdec_thread_types[] = {
150 {0x0, "Auto", "auto"},
151 {0x1, "Frame", "frame"},
152 {0x2, "Slice", "slice"},
156 #define GST_FFMPEGVIDDEC_TYPE_THREAD_TYPE (gst_ffmpegviddec_thread_type_get_type())
158 gst_ffmpegviddec_thread_type_get_type (void)
160 static GType ffmpegdec_thread_type_type = 0;
162 if (!ffmpegdec_thread_type_type) {
163 ffmpegdec_thread_type_type =
164 g_flags_register_static ("GstLibAVVidDecThreadType",
165 ffmpegdec_thread_types);
167 return ffmpegdec_thread_type_type;
171 gst_ffmpegviddec_base_init (GstFFMpegVidDecClass * klass)
173 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
174 GstPadTemplate *sinktempl, *srctempl;
175 GstCaps *sinkcaps, *srccaps;
177 gchar *longname, *description;
180 (AVCodec *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass),
181 GST_FFDEC_PARAMS_QDATA);
182 g_assert (in_plugin != NULL);
184 /* construct the element details struct */
185 longname = g_strdup_printf ("libav %s decoder", in_plugin->long_name);
186 description = g_strdup_printf ("libav %s decoder", in_plugin->name);
187 gst_element_class_set_metadata (element_class, longname,
188 "Codec/Decoder/Video", description,
189 "Wim Taymans <wim.taymans@gmail.com>, "
190 "Ronald Bultje <rbultje@ronald.bitfreak.net>, "
191 "Edward Hervey <bilboed@bilboed.com>");
193 g_free (description);
196 sinkcaps = gst_ffmpeg_codecid_to_caps (in_plugin->id, NULL, FALSE);
198 GST_DEBUG ("Couldn't get sink caps for decoder '%s'", in_plugin->name);
199 sinkcaps = gst_caps_new_empty_simple ("unknown/unknown");
201 srccaps = gst_ffmpeg_codectype_to_video_caps (NULL,
202 in_plugin->id, FALSE, in_plugin);
204 GST_DEBUG ("Couldn't get source caps for decoder '%s'", in_plugin->name);
205 srccaps = gst_caps_from_string ("video/x-raw");
209 sinktempl = gst_pad_template_new ("sink", GST_PAD_SINK,
210 GST_PAD_ALWAYS, sinkcaps);
211 srctempl = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, srccaps);
213 gst_element_class_add_pad_template (element_class, srctempl);
214 gst_element_class_add_pad_template (element_class, sinktempl);
216 gst_caps_unref (sinkcaps);
217 gst_caps_unref (srccaps);
219 klass->in_plugin = in_plugin;
223 gst_ffmpegviddec_class_init (GstFFMpegVidDecClass * klass)
225 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
226 GstVideoDecoderClass *viddec_class = GST_VIDEO_DECODER_CLASS (klass);
229 parent_class = g_type_class_peek_parent (klass);
231 gobject_class->finalize = gst_ffmpegviddec_finalize;
233 gobject_class->set_property = gst_ffmpegviddec_set_property;
234 gobject_class->get_property = gst_ffmpegviddec_get_property;
236 g_object_class_install_property (gobject_class, PROP_SKIPFRAME,
237 g_param_spec_enum ("skip-frame", "Skip frames",
238 "Which types of frames to skip during decoding",
239 GST_FFMPEGVIDDEC_TYPE_SKIPFRAME, 0,
240 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
241 g_object_class_install_property (gobject_class, PROP_LOWRES,
242 g_param_spec_enum ("lowres", "Low resolution",
243 "At which resolution to decode images",
244 GST_FFMPEGVIDDEC_TYPE_LOWRES, 0,
245 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
246 g_object_class_install_property (gobject_class, PROP_DIRECT_RENDERING,
247 g_param_spec_boolean ("direct-rendering", "Direct Rendering",
248 "Enable direct rendering", DEFAULT_DIRECT_RENDERING,
249 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
250 g_object_class_install_property (gobject_class, PROP_DEBUG_MV,
251 g_param_spec_boolean ("debug-mv", "Debug motion vectors",
252 "Whether libav should print motion vectors on top of the image",
253 DEFAULT_DEBUG_MV, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
254 g_object_class_install_property (gobject_class, PROP_OUTPUT_CORRUPT,
255 g_param_spec_boolean ("output-corrupt", "Output corrupt buffers",
256 "Whether libav should output frames even if corrupted",
257 DEFAULT_OUTPUT_CORRUPT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
259 caps = klass->in_plugin->capabilities;
260 if (caps & (AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_SLICE_THREADS)) {
261 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_THREADS,
262 g_param_spec_int ("max-threads", "Maximum decode threads",
263 "Maximum number of worker threads to spawn. (0 = auto)",
264 0, G_MAXINT, DEFAULT_MAX_THREADS,
265 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
266 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_THREAD_TYPE,
267 g_param_spec_flags ("thread-type", "Thread type",
268 "Multithreading methods to use",
269 GST_FFMPEGVIDDEC_TYPE_THREAD_TYPE,
270 DEFAULT_THREAD_TYPE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
273 viddec_class->set_format = gst_ffmpegviddec_set_format;
274 viddec_class->handle_frame = gst_ffmpegviddec_handle_frame;
275 viddec_class->start = gst_ffmpegviddec_start;
276 viddec_class->stop = gst_ffmpegviddec_stop;
277 viddec_class->flush = gst_ffmpegviddec_flush;
278 viddec_class->finish = gst_ffmpegviddec_finish;
279 viddec_class->drain = gst_ffmpegviddec_drain;
280 viddec_class->decide_allocation = gst_ffmpegviddec_decide_allocation;
281 viddec_class->propose_allocation = gst_ffmpegviddec_propose_allocation;
283 GST_DEBUG_CATEGORY_GET (GST_CAT_PERFORMANCE, "GST_PERFORMANCE");
285 gst_type_mark_as_plugin_api (GST_FFMPEGVIDDEC_TYPE_LOWRES, 0);
286 gst_type_mark_as_plugin_api (GST_FFMPEGVIDDEC_TYPE_SKIPFRAME, 0);
287 gst_type_mark_as_plugin_api (GST_FFMPEGVIDDEC_TYPE_THREAD_TYPE, 0);
291 gst_ffmpegviddec_init (GstFFMpegVidDec * ffmpegdec)
293 GstFFMpegVidDecClass *klass =
294 (GstFFMpegVidDecClass *) G_OBJECT_GET_CLASS (ffmpegdec);
296 /* some ffmpeg data */
297 ffmpegdec->context = avcodec_alloc_context3 (klass->in_plugin);
298 ffmpegdec->context->opaque = ffmpegdec;
299 ffmpegdec->picture = av_frame_alloc ();
300 ffmpegdec->opened = FALSE;
301 ffmpegdec->skip_frame = ffmpegdec->lowres = 0;
302 ffmpegdec->direct_rendering = DEFAULT_DIRECT_RENDERING;
303 ffmpegdec->debug_mv = DEFAULT_DEBUG_MV;
304 ffmpegdec->max_threads = DEFAULT_MAX_THREADS;
305 ffmpegdec->output_corrupt = DEFAULT_OUTPUT_CORRUPT;
306 ffmpegdec->thread_type = DEFAULT_THREAD_TYPE;
308 GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (ffmpegdec));
309 gst_video_decoder_set_use_default_pad_acceptcaps (GST_VIDEO_DECODER_CAST
312 gst_video_decoder_set_needs_format (GST_VIDEO_DECODER (ffmpegdec), TRUE);
316 gst_ffmpegviddec_finalize (GObject * object)
318 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) object;
320 av_frame_free (&ffmpegdec->picture);
322 if (ffmpegdec->context != NULL) {
323 gst_ffmpeg_avcodec_close (ffmpegdec->context);
324 av_free (ffmpegdec->context);
325 ffmpegdec->context = NULL;
328 G_OBJECT_CLASS (parent_class)->finalize (object);
332 gst_ffmpegviddec_context_set_flags (AVCodecContext * context, guint flags,
335 g_return_if_fail (context != NULL);
338 context->flags |= flags;
340 context->flags &= ~flags;
345 gst_ffmpegviddec_close (GstFFMpegVidDec * ffmpegdec, gboolean reset)
347 GstFFMpegVidDecClass *oclass;
350 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
352 GST_LOG_OBJECT (ffmpegdec, "closing ffmpeg codec");
354 gst_caps_replace (&ffmpegdec->last_caps, NULL);
356 gst_ffmpeg_avcodec_close (ffmpegdec->context);
357 ffmpegdec->opened = FALSE;
359 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
360 ffmpegdec->stride[i] = -1;
362 gst_buffer_replace (&ffmpegdec->palette, NULL);
364 if (ffmpegdec->context->extradata) {
365 av_free (ffmpegdec->context->extradata);
366 ffmpegdec->context->extradata = NULL;
369 if (avcodec_get_context_defaults3 (ffmpegdec->context,
370 oclass->in_plugin) < 0) {
371 GST_DEBUG_OBJECT (ffmpegdec, "Failed to set context defaults");
374 ffmpegdec->context->opaque = ffmpegdec;
381 gst_ffmpegviddec_open (GstFFMpegVidDec * ffmpegdec)
383 GstFFMpegVidDecClass *oclass;
386 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
388 if (gst_ffmpeg_avcodec_open (ffmpegdec->context, oclass->in_plugin) < 0)
391 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
392 ffmpegdec->stride[i] = -1;
394 ffmpegdec->opened = TRUE;
396 GST_LOG_OBJECT (ffmpegdec, "Opened libav codec %s, id %d",
397 oclass->in_plugin->name, oclass->in_plugin->id);
399 gst_ffmpegviddec_context_set_flags (ffmpegdec->context,
400 AV_CODEC_FLAG_OUTPUT_CORRUPT, ffmpegdec->output_corrupt);
407 gst_ffmpegviddec_close (ffmpegdec, TRUE);
408 GST_DEBUG_OBJECT (ffmpegdec, "avdec_%s: Failed to open libav codec",
409 oclass->in_plugin->name);
415 gst_ffmpegviddec_get_palette (GstFFMpegVidDec * ffmpegdec,
416 GstVideoCodecState * state)
418 GstStructure *str = gst_caps_get_structure (state->caps, 0);
419 const GValue *palette_v;
422 /* do we have a palette? */
423 if ((palette_v = gst_structure_get_value (str, "palette_data"))) {
424 palette = gst_value_get_buffer (palette_v);
425 GST_DEBUG ("got palette data %p", palette);
426 if (gst_buffer_get_size (palette) >= AVPALETTE_SIZE) {
427 gst_buffer_replace (&ffmpegdec->palette, palette);
434 gst_ffmpegviddec_set_format (GstVideoDecoder * decoder,
435 GstVideoCodecState * state)
437 GstFFMpegVidDec *ffmpegdec;
438 GstFFMpegVidDecClass *oclass;
439 GstClockTime latency = GST_CLOCK_TIME_NONE;
440 gboolean ret = FALSE;
442 ffmpegdec = (GstFFMpegVidDec *) decoder;
443 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
445 if (ffmpegdec->last_caps != NULL &&
446 gst_caps_is_equal (ffmpegdec->last_caps, state->caps)) {
450 GST_DEBUG_OBJECT (ffmpegdec, "setcaps called");
452 GST_OBJECT_LOCK (ffmpegdec);
453 /* stupid check for VC1 */
454 if ((oclass->in_plugin->id == AV_CODEC_ID_WMV3) ||
455 (oclass->in_plugin->id == AV_CODEC_ID_VC1))
456 oclass->in_plugin->id = gst_ffmpeg_caps_to_codecid (state->caps, NULL);
458 /* close old session */
459 if (ffmpegdec->opened) {
460 GST_OBJECT_UNLOCK (ffmpegdec);
461 gst_ffmpegviddec_finish (decoder);
462 GST_OBJECT_LOCK (ffmpegdec);
463 if (!gst_ffmpegviddec_close (ffmpegdec, TRUE)) {
464 GST_OBJECT_UNLOCK (ffmpegdec);
467 ffmpegdec->pic_pix_fmt = 0;
468 ffmpegdec->pic_width = 0;
469 ffmpegdec->pic_height = 0;
470 ffmpegdec->pic_par_n = 0;
471 ffmpegdec->pic_par_d = 0;
472 ffmpegdec->pic_interlaced = 0;
473 ffmpegdec->pic_field_order = 0;
474 ffmpegdec->pic_field_order_changed = FALSE;
475 ffmpegdec->ctx_ticks = 0;
476 ffmpegdec->ctx_time_n = 0;
477 ffmpegdec->ctx_time_d = 0;
478 ffmpegdec->cur_multiview_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
479 ffmpegdec->cur_multiview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
482 gst_caps_replace (&ffmpegdec->last_caps, state->caps);
484 /* set buffer functions */
485 ffmpegdec->context->get_buffer2 = gst_ffmpegviddec_get_buffer2;
486 ffmpegdec->context->draw_horiz_band = NULL;
488 /* reset coded_width/_height to prevent it being reused from last time when
489 * the codec is opened again, causing a mismatch and possible
490 * segfault/corruption. (Common scenario when renegotiating caps) */
491 ffmpegdec->context->coded_width = 0;
492 ffmpegdec->context->coded_height = 0;
494 GST_LOG_OBJECT (ffmpegdec, "size %dx%d", ffmpegdec->context->width,
495 ffmpegdec->context->height);
497 /* FIXME : Create a method that takes GstVideoCodecState instead */
498 /* get size and so */
499 gst_ffmpeg_caps_with_codecid (oclass->in_plugin->id,
500 oclass->in_plugin->type, state->caps, ffmpegdec->context);
502 GST_LOG_OBJECT (ffmpegdec, "size after %dx%d", ffmpegdec->context->width,
503 ffmpegdec->context->height);
505 gst_ffmpegviddec_get_palette (ffmpegdec, state);
507 if (!ffmpegdec->context->time_base.den || !ffmpegdec->context->time_base.num) {
508 GST_DEBUG_OBJECT (ffmpegdec, "forcing 25/1 framerate");
509 ffmpegdec->context->time_base.num = 1;
510 ffmpegdec->context->time_base.den = 25;
513 /* workaround encoder bugs */
514 ffmpegdec->context->workaround_bugs |= FF_BUG_AUTODETECT;
515 ffmpegdec->context->err_recognition = 1;
518 ffmpegdec->context->lowres = ffmpegdec->lowres;
519 ffmpegdec->context->skip_frame = ffmpegdec->skip_frame;
521 /* ffmpeg can draw motion vectors on top of the image (not every decoder
523 ffmpegdec->context->debug_mv = ffmpegdec->debug_mv;
525 if (ffmpegdec->thread_type) {
526 GST_DEBUG_OBJECT (ffmpegdec, "Use requested thread type 0x%x",
527 ffmpegdec->thread_type);
528 ffmpegdec->context->thread_type = ffmpegdec->thread_type;
533 query = gst_query_new_latency ();
535 /* Check if upstream is live. If it isn't we can enable frame based
536 * threading, which is adding latency */
537 if (gst_pad_peer_query (GST_VIDEO_DECODER_SINK_PAD (ffmpegdec), query)) {
538 gst_query_parse_latency (query, &is_live, NULL, NULL);
540 gst_query_unref (query);
543 ffmpegdec->context->thread_type = FF_THREAD_SLICE;
545 ffmpegdec->context->thread_type = FF_THREAD_SLICE | FF_THREAD_FRAME;
548 if (ffmpegdec->max_threads == 0) {
549 /* When thread type is FF_THREAD_FRAME, extra latency is introduced equal
550 * to one frame per thread. We thus need to calculate the thread count ourselves */
551 if ((!(oclass->in_plugin->capabilities & AV_CODEC_CAP_AUTO_THREADS)) ||
552 (ffmpegdec->context->thread_type & FF_THREAD_FRAME))
553 ffmpegdec->context->thread_count =
554 MIN (gst_ffmpeg_auto_max_threads (), 16);
556 ffmpegdec->context->thread_count = 0;
558 ffmpegdec->context->thread_count = ffmpegdec->max_threads;
560 /* open codec - we don't select an output pix_fmt yet,
561 * simply because we don't know! We only get it
562 * during playback... */
563 if (!gst_ffmpegviddec_open (ffmpegdec))
566 if (ffmpegdec->input_state)
567 gst_video_codec_state_unref (ffmpegdec->input_state);
568 ffmpegdec->input_state = gst_video_codec_state_ref (state);
570 if (ffmpegdec->input_state->info.fps_n) {
571 GstVideoInfo *info = &ffmpegdec->input_state->info;
572 latency = gst_util_uint64_scale_ceil (
573 (ffmpegdec->context->has_b_frames) * GST_SECOND, info->fps_d,
576 if (ffmpegdec->context->thread_type & FF_THREAD_FRAME) {
578 gst_util_uint64_scale_ceil (ffmpegdec->context->thread_count *
579 GST_SECOND, info->fps_d, info->fps_n);
586 GST_OBJECT_UNLOCK (ffmpegdec);
588 if (GST_CLOCK_TIME_IS_VALID (latency))
589 gst_video_decoder_set_latency (decoder, latency, latency);
596 GST_DEBUG_OBJECT (ffmpegdec, "Failed to open");
603 GstFFMpegVidDec *ffmpegdec;
604 GstVideoCodecFrame *frame;
606 GstVideoFrame vframe;
608 AVBufferRef *avbuffer;
609 } GstFFMpegVidDecVideoFrame;
611 static GstFFMpegVidDecVideoFrame *
612 gst_ffmpegviddec_video_frame_new (GstFFMpegVidDec * ffmpegdec,
613 GstVideoCodecFrame * frame)
615 GstFFMpegVidDecVideoFrame *dframe;
617 dframe = g_slice_new0 (GstFFMpegVidDecVideoFrame);
618 dframe->ffmpegdec = ffmpegdec;
619 dframe->frame = frame;
621 GST_DEBUG_OBJECT (ffmpegdec, "new video frame %p", dframe);
627 gst_ffmpegviddec_video_frame_free (GstFFMpegVidDec * ffmpegdec,
628 GstFFMpegVidDecVideoFrame * frame)
630 GST_DEBUG_OBJECT (ffmpegdec, "free video frame %p", frame);
633 gst_video_frame_unmap (&frame->vframe);
634 gst_video_decoder_release_frame (GST_VIDEO_DECODER (ffmpegdec), frame->frame);
635 gst_buffer_replace (&frame->buffer, NULL);
636 if (frame->avbuffer) {
637 av_buffer_unref (&frame->avbuffer);
639 g_slice_free (GstFFMpegVidDecVideoFrame, frame);
643 dummy_free_buffer (void *opaque, uint8_t * data)
645 GstFFMpegVidDecVideoFrame *frame = opaque;
647 gst_ffmpegviddec_video_frame_free (frame->ffmpegdec, frame);
650 /* This function prepares the pool configuration for direct rendering. To use
651 * this method, the codec should support direct rendering and the pool should
652 * support video meta and video alignment */
654 gst_ffmpegvideodec_prepare_dr_pool (GstFFMpegVidDec * ffmpegdec,
655 GstBufferPool * pool, GstVideoInfo * info, GstStructure * config)
657 GstAllocationParams params;
658 GstVideoAlignment align;
659 GstAllocator *allocator = NULL;
661 gint linesize_align[4];
665 width = GST_VIDEO_INFO_WIDTH (info);
666 height = GST_VIDEO_INFO_HEIGHT (info);
668 /* let ffmpeg find the alignment and padding */
669 avcodec_align_dimensions2 (ffmpegdec->context, &width, &height,
672 align.padding_top = 0;
673 align.padding_left = 0;
674 align.padding_right = width - GST_VIDEO_INFO_WIDTH (info);
675 align.padding_bottom = height - GST_VIDEO_INFO_HEIGHT (info);
677 /* add extra padding to match libav buffer allocation sizes */
678 align.padding_bottom++;
680 gst_buffer_pool_config_get_allocator (config, &allocator, ¶ms);
682 max_align = DEFAULT_STRIDE_ALIGN;
683 max_align |= params.align;
685 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
686 if (linesize_align[i] > 0)
687 max_align |= linesize_align[i] - 1;
690 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++)
691 align.stride_align[i] = max_align;
693 params.align = max_align;
695 gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
697 GST_DEBUG_OBJECT (ffmpegdec, "aligned dimension %dx%d -> %dx%d "
698 "padding t:%u l:%u r:%u b:%u, stride_align %d:%d:%d:%d",
699 GST_VIDEO_INFO_WIDTH (info),
700 GST_VIDEO_INFO_HEIGHT (info), width, height, align.padding_top,
701 align.padding_left, align.padding_right, align.padding_bottom,
702 align.stride_align[0], align.stride_align[1], align.stride_align[2],
703 align.stride_align[3]);
705 gst_buffer_pool_config_add_option (config,
706 GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
707 gst_buffer_pool_config_set_video_alignment (config, &align);
711 gst_ffmpegviddec_ensure_internal_pool (GstFFMpegVidDec * ffmpegdec,
714 GstAllocationParams params = DEFAULT_ALLOC_PARAM;
716 GstVideoFormat format;
718 GstStructure *config;
721 if (ffmpegdec->internal_pool != NULL &&
722 ffmpegdec->pool_width == picture->width &&
723 ffmpegdec->pool_height == picture->height &&
724 ffmpegdec->pool_format == picture->format)
727 GST_DEBUG_OBJECT (ffmpegdec, "Updating internal pool (%i, %i)",
728 picture->width, picture->height);
730 format = gst_ffmpeg_pixfmt_to_videoformat (picture->format);
731 gst_video_info_set_format (&info, format, picture->width, picture->height);
733 /* If we have not yet been negotiated, a NONE format here would
734 * result in invalid initial dimension alignments, and potential
735 * out of bounds writes.
737 ffmpegdec->context->pix_fmt = picture->format;
739 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
740 ffmpegdec->stride[i] = -1;
742 if (ffmpegdec->internal_pool)
743 gst_object_unref (ffmpegdec->internal_pool);
745 ffmpegdec->internal_pool = gst_video_buffer_pool_new ();
746 config = gst_buffer_pool_get_config (ffmpegdec->internal_pool);
748 caps = gst_video_info_to_caps (&info);
749 gst_buffer_pool_config_set_params (config, caps, info.size, 2, 0);
750 gst_buffer_pool_config_set_allocator (config, NULL, ¶ms);
751 gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
753 gst_ffmpegvideodec_prepare_dr_pool (ffmpegdec,
754 ffmpegdec->internal_pool, &info, config);
755 /* generic video pool never fails */
756 gst_buffer_pool_set_config (ffmpegdec->internal_pool, config);
757 gst_caps_unref (caps);
759 gst_buffer_pool_set_active (ffmpegdec->internal_pool, TRUE);
761 /* Remember pool size so we can detect changes */
762 ffmpegdec->pool_width = picture->width;
763 ffmpegdec->pool_height = picture->height;
764 ffmpegdec->pool_format = picture->format;
765 ffmpegdec->pool_info = info;
769 gst_ffmpegviddec_can_direct_render (GstFFMpegVidDec * ffmpegdec)
771 GstFFMpegVidDecClass *oclass;
773 if (!ffmpegdec->direct_rendering)
776 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
777 return ((oclass->in_plugin->capabilities & AV_CODEC_CAP_DR1) ==
781 /* called when ffmpeg wants us to allocate a buffer to write the decoded frame
782 * into. We try to give it memory from our pool */
784 gst_ffmpegviddec_get_buffer2 (AVCodecContext * context, AVFrame * picture,
787 GstVideoCodecFrame *frame;
788 GstFFMpegVidDecVideoFrame *dframe;
789 GstFFMpegVidDec *ffmpegdec;
792 int create_buffer_flags = 0;
794 ffmpegdec = (GstFFMpegVidDec *) context->opaque;
796 GST_DEBUG_OBJECT (ffmpegdec, "getting buffer picture %p", picture);
798 /* apply the last info we have seen to this picture, when we get the
799 * picture back from ffmpeg we can use this to correctly timestamp the output
801 GST_DEBUG_OBJECT (ffmpegdec, "opaque value SN %d",
802 (gint32) picture->reordered_opaque);
805 gst_video_decoder_get_frame (GST_VIDEO_DECODER (ffmpegdec),
806 picture->reordered_opaque);
807 if (G_UNLIKELY (frame == NULL))
810 /* now it has a buffer allocated, so it is real and will also
812 GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame,
813 GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
815 if (G_UNLIKELY (frame->output_buffer != NULL))
816 goto duplicate_frame;
818 /* GstFFMpegVidDecVideoFrame receives the frame ref */
819 if (picture->opaque) {
820 dframe = picture->opaque;
821 dframe->frame = frame;
823 picture->opaque = dframe =
824 gst_ffmpegviddec_video_frame_new (ffmpegdec, frame);
827 GST_DEBUG_OBJECT (ffmpegdec, "storing opaque %p", dframe);
829 if (!gst_ffmpegviddec_can_direct_render (ffmpegdec))
832 gst_ffmpegviddec_ensure_internal_pool (ffmpegdec, picture);
834 ret = gst_buffer_pool_acquire_buffer (ffmpegdec->internal_pool,
835 &frame->output_buffer, NULL);
836 if (ret != GST_FLOW_OK)
839 /* piggy-backed alloc'ed on the frame,
840 * and there was much rejoicing and we are grateful.
841 * Now take away buffer from frame, we will give it back later when decoded.
842 * This allows multiple request for a buffer per frame; unusual but possible. */
843 gst_buffer_replace (&dframe->buffer, frame->output_buffer);
844 gst_buffer_replace (&frame->output_buffer, NULL);
847 if (!gst_video_frame_map (&dframe->vframe, &ffmpegdec->pool_info,
848 dframe->buffer, GST_MAP_READWRITE))
850 dframe->mapped = TRUE;
852 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
853 if (c < GST_VIDEO_INFO_N_PLANES (&ffmpegdec->pool_info)) {
854 picture->data[c] = GST_VIDEO_FRAME_PLANE_DATA (&dframe->vframe, c);
855 picture->linesize[c] = GST_VIDEO_FRAME_PLANE_STRIDE (&dframe->vframe, c);
857 if (ffmpegdec->stride[c] == -1)
858 ffmpegdec->stride[c] = picture->linesize[c];
860 /* libav does not allow stride changes, decide allocation should check
861 * before replacing the internal pool with a downstream pool.
862 * https://bugzilla.gnome.org/show_bug.cgi?id=704769
863 * https://bugzilla.libav.org/show_bug.cgi?id=556
865 g_assert (picture->linesize[c] == ffmpegdec->stride[c]);
867 picture->data[c] = NULL;
868 picture->linesize[c] = 0;
870 GST_LOG_OBJECT (ffmpegdec, "linesize %d, data %p", picture->linesize[c],
874 if ((flags & AV_GET_BUFFER_FLAG_REF) == AV_GET_BUFFER_FLAG_REF) {
875 /* decoder might reuse this AVFrame and it would result to no more
876 * get_buffer() call if the AVFrame's AVBuffer is writable
877 * (meaning that the refcount of AVBuffer == 1).
878 * To enforce get_buffer() for the every output frame, set read-only flag here
880 create_buffer_flags = AV_BUFFER_FLAG_READONLY;
882 picture->buf[0] = av_buffer_create (NULL,
883 0, dummy_free_buffer, dframe, create_buffer_flags);
885 GST_LOG_OBJECT (ffmpegdec, "returned frame %p", dframe->buffer);
892 int ret = avcodec_default_get_buffer2 (context, picture, flags);
894 GST_LOG_OBJECT (ffmpegdec, "direct rendering disabled, fallback alloc");
896 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
897 ffmpegdec->stride[c] = picture->linesize[c];
899 /* Wrap our buffer around the default one to be able to have a callback
900 * when our data can be freed. Just putting our data into the first free
901 * buffer might not work if there are too many allocated already
903 if (picture->buf[0]) {
904 dframe->avbuffer = picture->buf[0];
906 av_buffer_create (picture->buf[0]->data, picture->buf[0]->size,
907 dummy_free_buffer, dframe, 0);
910 av_buffer_create (NULL, 0, dummy_free_buffer, dframe, 0);
917 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, FAILED,
918 ("Unable to allocate memory"),
919 ("The downstream pool failed to allocated buffer."));
924 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, OPEN_READ_WRITE,
925 ("Cannot access memory for read and write operation."),
926 ("The video memory allocated from downstream pool could not mapped for"
932 GST_WARNING_OBJECT (ffmpegdec, "already alloc'ed output buffer for frame");
933 gst_video_codec_frame_unref (frame);
938 GST_WARNING_OBJECT (ffmpegdec, "Couldn't get codec frame !");
944 picture_changed (GstFFMpegVidDec * ffmpegdec, AVFrame * picture)
946 gint pic_field_order = 0;
948 if (picture->interlaced_frame) {
949 if (picture->repeat_pict)
950 pic_field_order |= GST_VIDEO_BUFFER_FLAG_RFF;
951 if (picture->top_field_first)
952 pic_field_order |= GST_VIDEO_BUFFER_FLAG_TFF;
955 return !(ffmpegdec->pic_width == picture->width
956 && ffmpegdec->pic_height == picture->height
957 && ffmpegdec->pic_pix_fmt == picture->format
958 && ffmpegdec->pic_par_n == picture->sample_aspect_ratio.num
959 && ffmpegdec->pic_par_d == picture->sample_aspect_ratio.den
960 && ffmpegdec->pic_interlaced == picture->interlaced_frame
961 && ffmpegdec->pic_field_order == pic_field_order
962 && ffmpegdec->cur_multiview_mode == ffmpegdec->picture_multiview_mode
963 && ffmpegdec->cur_multiview_flags == ffmpegdec->picture_multiview_flags);
967 context_changed (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context)
969 return !(ffmpegdec->ctx_ticks == context->ticks_per_frame
970 && ffmpegdec->ctx_time_n == context->time_base.num
971 && ffmpegdec->ctx_time_d == context->time_base.den);
975 update_video_context (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context,
978 gint pic_field_order = 0;
980 if (picture->interlaced_frame) {
981 if (picture->repeat_pict)
982 pic_field_order |= GST_VIDEO_BUFFER_FLAG_RFF;
983 if (picture->top_field_first)
984 pic_field_order |= GST_VIDEO_BUFFER_FLAG_TFF;
987 if (!picture_changed (ffmpegdec, picture)
988 && !context_changed (ffmpegdec, context))
991 GST_DEBUG_OBJECT (ffmpegdec,
992 "Renegotiating video from %dx%d@ %d:%d PAR %d/%d fps pixfmt %d to %dx%d@ %d:%d PAR %d/%d fps pixfmt %d",
993 ffmpegdec->pic_width, ffmpegdec->pic_height,
994 ffmpegdec->pic_par_n, ffmpegdec->pic_par_d,
995 ffmpegdec->ctx_time_n, ffmpegdec->ctx_time_d,
996 ffmpegdec->pic_pix_fmt,
997 picture->width, picture->height,
998 picture->sample_aspect_ratio.num,
999 picture->sample_aspect_ratio.den,
1000 context->time_base.num, context->time_base.den, picture->format);
1002 ffmpegdec->pic_pix_fmt = picture->format;
1003 ffmpegdec->pic_width = picture->width;
1004 ffmpegdec->pic_height = picture->height;
1005 ffmpegdec->pic_par_n = picture->sample_aspect_ratio.num;
1006 ffmpegdec->pic_par_d = picture->sample_aspect_ratio.den;
1007 ffmpegdec->cur_multiview_mode = ffmpegdec->picture_multiview_mode;
1008 ffmpegdec->cur_multiview_flags = ffmpegdec->picture_multiview_flags;
1010 /* Remember if we have interlaced content and the field order changed
1011 * at least once. If that happens, we must be interlace-mode=mixed
1013 if (ffmpegdec->pic_field_order_changed ||
1014 (ffmpegdec->pic_field_order != pic_field_order &&
1015 ffmpegdec->pic_interlaced))
1016 ffmpegdec->pic_field_order_changed = TRUE;
1018 ffmpegdec->pic_field_order = pic_field_order;
1019 ffmpegdec->pic_interlaced = picture->interlaced_frame;
1021 if (!ffmpegdec->pic_interlaced)
1022 ffmpegdec->pic_field_order_changed = FALSE;
1024 ffmpegdec->ctx_ticks = context->ticks_per_frame;
1025 ffmpegdec->ctx_time_n = context->time_base.num;
1026 ffmpegdec->ctx_time_d = context->time_base.den;
1032 gst_ffmpegviddec_update_par (GstFFMpegVidDec * ffmpegdec,
1033 GstVideoInfo * in_info, GstVideoInfo * out_info)
1035 gboolean demuxer_par_set = FALSE;
1036 gboolean decoder_par_set = FALSE;
1037 gint demuxer_num = 1, demuxer_denom = 1;
1038 gint decoder_num = 1, decoder_denom = 1;
1040 if (in_info->par_n && in_info->par_d) {
1041 demuxer_num = in_info->par_n;
1042 demuxer_denom = in_info->par_d;
1043 demuxer_par_set = TRUE;
1044 GST_DEBUG_OBJECT (ffmpegdec, "Demuxer PAR: %d:%d", demuxer_num,
1048 if (ffmpegdec->pic_par_n && ffmpegdec->pic_par_d) {
1049 decoder_num = ffmpegdec->pic_par_n;
1050 decoder_denom = ffmpegdec->pic_par_d;
1051 decoder_par_set = TRUE;
1052 GST_DEBUG_OBJECT (ffmpegdec, "Decoder PAR: %d:%d", decoder_num,
1056 if (!demuxer_par_set && !decoder_par_set)
1059 if (demuxer_par_set && !decoder_par_set)
1060 goto use_demuxer_par;
1062 if (decoder_par_set && !demuxer_par_set)
1063 goto use_decoder_par;
1065 /* Both the demuxer and the decoder provide a PAR. If one of
1066 * the two PARs is 1:1 and the other one is not, use the one
1067 * that is not 1:1. */
1068 if (demuxer_num == demuxer_denom && decoder_num != decoder_denom)
1069 goto use_decoder_par;
1071 if (decoder_num == decoder_denom && demuxer_num != demuxer_denom)
1072 goto use_demuxer_par;
1074 /* Both PARs are non-1:1, so use the PAR provided by the demuxer */
1075 goto use_demuxer_par;
1079 GST_DEBUG_OBJECT (ffmpegdec,
1080 "Setting decoder provided pixel-aspect-ratio of %u:%u", decoder_num,
1082 out_info->par_n = decoder_num;
1083 out_info->par_d = decoder_denom;
1088 GST_DEBUG_OBJECT (ffmpegdec,
1089 "Setting demuxer provided pixel-aspect-ratio of %u:%u", demuxer_num,
1091 out_info->par_n = demuxer_num;
1092 out_info->par_d = demuxer_denom;
1097 GST_DEBUG_OBJECT (ffmpegdec,
1098 "Neither demuxer nor codec provide a pixel-aspect-ratio");
1099 out_info->par_n = 1;
1100 out_info->par_d = 1;
1105 static GstVideoMultiviewMode
1106 stereo_av_to_gst (enum AVStereo3DType type)
1109 case AV_STEREO3D_SIDEBYSIDE:
1110 return GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
1111 case AV_STEREO3D_TOPBOTTOM:
1112 return GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM;
1113 case AV_STEREO3D_FRAMESEQUENCE:
1114 return GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME;
1115 case AV_STEREO3D_CHECKERBOARD:
1116 return GST_VIDEO_MULTIVIEW_MODE_CHECKERBOARD;
1117 case AV_STEREO3D_SIDEBYSIDE_QUINCUNX:
1118 return GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX;
1119 case AV_STEREO3D_LINES:
1120 return GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED;
1121 case AV_STEREO3D_COLUMNS:
1122 return GST_VIDEO_MULTIVIEW_MODE_COLUMN_INTERLEAVED;
1127 return GST_VIDEO_MULTIVIEW_MODE_NONE;
1131 mastering_display_metadata_av_to_gst (AVMasteringDisplayMetadata * av,
1132 GstVideoMasteringDisplayInfo * gst)
1134 const guint64 chroma_scale = 50000;
1135 const guint64 luma_scale = 10000;
1138 /* Use only complete mastering meta */
1139 if (!av->has_primaries || !av->has_luminance)
1142 for (i = 0; i < G_N_ELEMENTS (gst->display_primaries); i++) {
1143 gst->display_primaries[i].x = (guint16) gst_util_uint64_scale (chroma_scale,
1144 av->display_primaries[i][0].num, av->display_primaries[i][0].den);
1145 gst->display_primaries[i].y = (guint16) gst_util_uint64_scale (chroma_scale,
1146 av->display_primaries[i][1].num, av->display_primaries[i][1].den);
1149 gst->white_point.x = (guint16) gst_util_uint64_scale (chroma_scale,
1150 av->white_point[0].num, av->white_point[0].den);
1151 gst->white_point.y = (guint16) gst_util_uint64_scale (chroma_scale,
1152 av->white_point[1].num, av->white_point[1].den);
1155 gst->max_display_mastering_luminance =
1156 (guint32) gst_util_uint64_scale (luma_scale,
1157 av->max_luminance.num, av->max_luminance.den);
1158 gst->min_display_mastering_luminance =
1159 (guint32) gst_util_uint64_scale (luma_scale,
1160 av->min_luminance.num, av->min_luminance.den);
1166 content_light_metadata_av_to_gst (AVContentLightMetadata * av,
1167 GstVideoContentLightLevel * gst)
1169 gst->max_content_light_level = av->MaxCLL;
1170 gst->max_frame_average_light_level = av->MaxFALL;
1176 gst_ffmpegviddec_negotiate (GstFFMpegVidDec * ffmpegdec,
1177 AVCodecContext * context, AVFrame * picture)
1180 GstVideoInfo *in_info, *out_info;
1181 GstVideoCodecState *output_state;
1183 GstClockTime latency;
1186 if (!update_video_context (ffmpegdec, context, picture))
1189 fmt = gst_ffmpeg_pixfmt_to_videoformat (ffmpegdec->pic_pix_fmt);
1190 if (G_UNLIKELY (fmt == GST_VIDEO_FORMAT_UNKNOWN))
1191 goto unknown_format;
1194 gst_video_decoder_set_output_state (GST_VIDEO_DECODER (ffmpegdec), fmt,
1195 ffmpegdec->pic_width, ffmpegdec->pic_height, ffmpegdec->input_state);
1196 if (ffmpegdec->output_state)
1197 gst_video_codec_state_unref (ffmpegdec->output_state);
1198 ffmpegdec->output_state = output_state;
1200 in_info = &ffmpegdec->input_state->info;
1201 out_info = &ffmpegdec->output_state->info;
1203 /* set the interlaced flag */
1204 in_s = gst_caps_get_structure (ffmpegdec->input_state->caps, 0);
1206 if (!gst_structure_has_field (in_s, "interlace-mode")) {
1207 if (ffmpegdec->pic_interlaced) {
1208 if (ffmpegdec->pic_field_order_changed ||
1209 (ffmpegdec->pic_field_order & GST_VIDEO_BUFFER_FLAG_RFF)) {
1210 out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED;
1212 out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_INTERLEAVED;
1213 if ((ffmpegdec->pic_field_order & GST_VIDEO_BUFFER_FLAG_TFF))
1214 GST_VIDEO_INFO_FIELD_ORDER (out_info) =
1215 GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST;
1217 GST_VIDEO_INFO_FIELD_ORDER (out_info) =
1218 GST_VIDEO_FIELD_ORDER_BOTTOM_FIELD_FIRST;
1221 out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
1225 if (!gst_structure_has_field (in_s, "chroma-site")) {
1226 switch (context->chroma_sample_location) {
1227 case AVCHROMA_LOC_LEFT:
1228 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_MPEG2;
1230 case AVCHROMA_LOC_CENTER:
1231 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_JPEG;
1233 case AVCHROMA_LOC_TOPLEFT:
1234 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_DV;
1236 case AVCHROMA_LOC_TOP:
1237 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_V_COSITED;
1244 if (!gst_structure_has_field (in_s, "colorimetry")
1245 || in_info->colorimetry.primaries == GST_VIDEO_COLOR_PRIMARIES_UNKNOWN) {
1246 out_info->colorimetry.primaries =
1247 gst_video_color_primaries_from_iso (context->color_primaries);
1250 if (!gst_structure_has_field (in_s, "colorimetry")
1251 || in_info->colorimetry.transfer == GST_VIDEO_TRANSFER_UNKNOWN) {
1252 out_info->colorimetry.transfer =
1253 gst_video_color_transfer_from_iso (context->color_trc);
1256 if (!gst_structure_has_field (in_s, "colorimetry")
1257 || in_info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_UNKNOWN) {
1258 out_info->colorimetry.matrix =
1259 gst_video_color_matrix_from_iso (context->colorspace);
1262 if (!gst_structure_has_field (in_s, "colorimetry")
1263 || in_info->colorimetry.range == GST_VIDEO_COLOR_RANGE_UNKNOWN) {
1264 if (context->color_range == AVCOL_RANGE_JPEG) {
1265 out_info->colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255;
1266 } else if (context->color_range == AVCOL_RANGE_MPEG) {
1267 out_info->colorimetry.range = GST_VIDEO_COLOR_RANGE_16_235;
1269 out_info->colorimetry.range = GST_VIDEO_COLOR_RANGE_UNKNOWN;
1273 /* try to find a good framerate */
1274 if ((in_info->fps_d && in_info->fps_n) ||
1275 GST_VIDEO_INFO_FLAG_IS_SET (in_info, GST_VIDEO_FLAG_VARIABLE_FPS)) {
1276 /* take framerate from input when it was specified (#313970) */
1277 fps_n = in_info->fps_n;
1278 fps_d = in_info->fps_d;
1280 fps_n = ffmpegdec->ctx_time_d / ffmpegdec->ctx_ticks;
1281 fps_d = ffmpegdec->ctx_time_n;
1284 GST_LOG_OBJECT (ffmpegdec, "invalid framerate: %d/0, -> %d/1", fps_n,
1288 if (gst_util_fraction_compare (fps_n, fps_d, 1000, 1) > 0) {
1289 GST_LOG_OBJECT (ffmpegdec, "excessive framerate: %d/%d, -> 0/1", fps_n,
1296 GST_LOG_OBJECT (ffmpegdec, "setting framerate: %d/%d", fps_n, fps_d);
1297 out_info->fps_n = fps_n;
1298 out_info->fps_d = fps_d;
1300 /* calculate and update par now */
1301 gst_ffmpegviddec_update_par (ffmpegdec, in_info, out_info);
1303 GST_VIDEO_INFO_MULTIVIEW_MODE (out_info) = ffmpegdec->cur_multiview_mode;
1304 GST_VIDEO_INFO_MULTIVIEW_FLAGS (out_info) = ffmpegdec->cur_multiview_flags;
1306 /* To passing HDR information to caps directly */
1307 if (output_state->caps == NULL) {
1308 output_state->caps = gst_video_info_to_caps (out_info);
1310 output_state->caps = gst_caps_make_writable (output_state->caps);
1313 if (!gst_structure_has_field (in_s, "mastering-display-info")) {
1314 AVFrameSideData *sd = av_frame_get_side_data (picture,
1315 AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
1316 GstVideoMasteringDisplayInfo minfo;
1319 && mastering_display_metadata_av_to_gst ((AVMasteringDisplayMetadata *)
1320 sd->data, &minfo)) {
1321 GST_LOG_OBJECT (ffmpegdec, "update mastering display info: "
1326 "max_luminance(%u) "
1327 "min_luminance(%u) ",
1328 minfo.display_primaries[0].x, minfo.display_primaries[0].y,
1329 minfo.display_primaries[1].x, minfo.display_primaries[1].y,
1330 minfo.display_primaries[2].x, minfo.display_primaries[2].y,
1331 minfo.white_point.x, minfo.white_point.y,
1332 minfo.max_display_mastering_luminance,
1333 minfo.min_display_mastering_luminance);
1335 if (!gst_video_mastering_display_info_add_to_caps (&minfo,
1336 output_state->caps)) {
1337 GST_WARNING_OBJECT (ffmpegdec,
1338 "Couldn't set mastering display info to caps");
1343 if (!gst_structure_has_field (in_s, "content-light-level")) {
1344 AVFrameSideData *sd = av_frame_get_side_data (picture,
1345 AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
1346 GstVideoContentLightLevel cll;
1348 if (sd && content_light_metadata_av_to_gst ((AVContentLightMetadata *)
1350 GST_LOG_OBJECT (ffmpegdec, "update content light level: "
1351 "maxCLL:(%u), maxFALL:(%u)", cll.max_content_light_level,
1352 cll.max_frame_average_light_level);
1354 if (!gst_video_content_light_level_add_to_caps (&cll, output_state->caps)) {
1355 GST_WARNING_OBJECT (ffmpegdec,
1356 "Couldn't set content light level to caps");
1361 if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (ffmpegdec)))
1362 goto negotiate_failed;
1364 /* The decoder is configured, we now know the true latency */
1367 gst_util_uint64_scale_ceil (ffmpegdec->context->has_b_frames *
1368 GST_SECOND, fps_d, fps_n);
1369 if (ffmpegdec->context->thread_type & FF_THREAD_FRAME) {
1371 gst_util_uint64_scale_ceil (ffmpegdec->context->thread_count *
1372 GST_SECOND, fps_d, fps_n);
1374 gst_video_decoder_set_latency (GST_VIDEO_DECODER (ffmpegdec), latency,
1383 GST_ERROR_OBJECT (ffmpegdec,
1384 "decoder requires a video format unsupported by GStreamer");
1389 /* Reset so we try again next time even if force==FALSE */
1390 ffmpegdec->pic_pix_fmt = 0;
1391 ffmpegdec->pic_width = 0;
1392 ffmpegdec->pic_height = 0;
1393 ffmpegdec->pic_par_n = 0;
1394 ffmpegdec->pic_par_d = 0;
1395 ffmpegdec->pic_interlaced = 0;
1396 ffmpegdec->pic_field_order = 0;
1397 ffmpegdec->pic_field_order_changed = FALSE;
1398 ffmpegdec->ctx_ticks = 0;
1399 ffmpegdec->ctx_time_n = 0;
1400 ffmpegdec->ctx_time_d = 0;
1402 GST_ERROR_OBJECT (ffmpegdec, "negotiation failed");
1407 /* perform qos calculations before decoding the next frame.
1409 * Sets the skip_frame flag and if things are really bad, skips to the next
1414 gst_ffmpegviddec_do_qos (GstFFMpegVidDec * ffmpegdec,
1415 GstVideoCodecFrame * frame, gboolean * mode_switch)
1417 GstClockTimeDiff diff;
1418 GstSegmentFlags skip_flags =
1419 GST_VIDEO_DECODER_INPUT_SEGMENT (ffmpegdec).flags;
1421 *mode_switch = FALSE;
1426 if (skip_flags & GST_SEGMENT_FLAG_TRICKMODE_KEY_UNITS) {
1427 ffmpegdec->context->skip_frame = AVDISCARD_NONKEY;
1428 *mode_switch = TRUE;
1429 } else if (skip_flags & GST_SEGMENT_FLAG_TRICKMODE) {
1430 ffmpegdec->context->skip_frame = AVDISCARD_NONREF;
1431 *mode_switch = TRUE;
1434 if (*mode_switch == TRUE) {
1435 /* We've already switched mode, we can return straight away
1436 * without any further calculation */
1441 gst_video_decoder_get_max_decode_time (GST_VIDEO_DECODER (ffmpegdec),
1444 /* if we don't have timing info, then we don't do QoS */
1445 if (G_UNLIKELY (diff == G_MAXINT64)) {
1446 /* Ensure the skipping strategy is the default one */
1447 ffmpegdec->context->skip_frame = ffmpegdec->skip_frame;
1451 GST_DEBUG_OBJECT (ffmpegdec, "decoding time %" G_GINT64_FORMAT, diff);
1453 if (diff > 0 && ffmpegdec->context->skip_frame != AVDISCARD_DEFAULT) {
1454 ffmpegdec->context->skip_frame = AVDISCARD_DEFAULT;
1455 *mode_switch = TRUE;
1456 GST_DEBUG_OBJECT (ffmpegdec, "QOS: normal mode");
1459 else if (diff <= 0 && ffmpegdec->context->skip_frame != AVDISCARD_NONREF) {
1460 ffmpegdec->context->skip_frame = AVDISCARD_NONREF;
1461 *mode_switch = TRUE;
1462 GST_DEBUG_OBJECT (ffmpegdec,
1463 "QOS: hurry up, diff %" G_GINT64_FORMAT " >= 0", diff);
1467 /* get an outbuf buffer with the current picture */
1468 static GstFlowReturn
1469 get_output_buffer (GstFFMpegVidDec * ffmpegdec, GstVideoCodecFrame * frame)
1471 GstFlowReturn ret = GST_FLOW_OK;
1472 AVFrame pic, *outpic;
1473 GstVideoFrame vframe;
1477 GST_LOG_OBJECT (ffmpegdec, "get output buffer");
1479 if (!ffmpegdec->output_state)
1480 goto not_negotiated;
1483 gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (ffmpegdec),
1485 if (G_UNLIKELY (ret != GST_FLOW_OK))
1488 /* original ffmpeg code does not handle odd sizes correctly.
1489 * This patched up version does */
1490 /* Fill avpicture */
1491 info = &ffmpegdec->output_state->info;
1492 if (!gst_video_frame_map (&vframe, info, frame->output_buffer,
1493 GST_MAP_READ | GST_MAP_WRITE))
1496 memset (&pic, 0, sizeof (pic));
1497 pic.format = ffmpegdec->pic_pix_fmt;
1498 pic.width = GST_VIDEO_FRAME_WIDTH (&vframe);
1499 pic.height = GST_VIDEO_FRAME_HEIGHT (&vframe);
1500 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
1501 if (c < GST_VIDEO_INFO_N_PLANES (info)) {
1502 pic.data[c] = GST_VIDEO_FRAME_PLANE_DATA (&vframe, c);
1503 pic.linesize[c] = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, c);
1504 GST_LOG_OBJECT (ffmpegdec, "[%i] linesize %d, data %p", c,
1505 pic.linesize[c], pic.data[c]);
1508 pic.linesize[c] = 0;
1512 outpic = ffmpegdec->picture;
1514 if (av_frame_copy (&pic, outpic) != 0) {
1515 GST_ERROR_OBJECT (ffmpegdec, "Failed to copy output frame");
1516 ret = GST_FLOW_ERROR;
1519 gst_video_frame_unmap (&vframe);
1521 ffmpegdec->picture->reordered_opaque = -1;
1528 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, FAILED,
1529 ("Unable to allocate memory"),
1530 ("The downstream pool failed to allocated buffer."));
1535 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, OPEN_READ_WRITE,
1536 ("Cannot access memory for read and write operation."),
1537 ("The video memory allocated from downstream pool could not mapped for"
1538 "read and write."));
1543 GST_DEBUG_OBJECT (ffmpegdec, "not negotiated");
1544 return GST_FLOW_NOT_NEGOTIATED;
1549 gst_avpacket_init (AVPacket * packet, guint8 * data, guint size)
1551 memset (packet, 0, sizeof (AVPacket));
1552 packet->data = data;
1553 packet->size = size;
1557 * Returns: whether a frame was decoded
1560 gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
1561 GstVideoCodecFrame * frame, GstFlowReturn * ret)
1564 gboolean got_frame = FALSE;
1565 gboolean mode_switch;
1566 GstVideoCodecFrame *out_frame;
1567 GstFFMpegVidDecVideoFrame *out_dframe;
1568 GstBufferPool *pool;
1572 /* in case we skip frames */
1573 ffmpegdec->picture->pict_type = -1;
1575 /* run QoS code, we don't stop decoding the frame when we are late because
1576 * else we might skip a reference frame */
1577 gst_ffmpegviddec_do_qos (ffmpegdec, frame, &mode_switch);
1579 res = avcodec_receive_frame (ffmpegdec->context, ffmpegdec->picture);
1581 /* No frames available at this time */
1582 if (res == AVERROR (EAGAIN))
1584 else if (res == AVERROR_EOF) {
1585 *ret = GST_FLOW_EOS;
1586 GST_DEBUG_OBJECT (ffmpegdec, "Context was entirely flushed");
1588 } else if (res < 0) {
1590 GST_WARNING_OBJECT (ffmpegdec, "Legitimate decoding error");
1596 /* get the output picture timing info again */
1597 out_dframe = ffmpegdec->picture->opaque;
1598 out_frame = gst_video_codec_frame_ref (out_dframe->frame);
1600 /* also give back a buffer allocated by the frame, if any */
1601 gst_buffer_replace (&out_frame->output_buffer, out_dframe->buffer);
1602 gst_buffer_replace (&out_dframe->buffer, NULL);
1604 /* Extract auxilliary info not stored in the main AVframe */
1606 GstVideoInfo *in_info = &ffmpegdec->input_state->info;
1607 /* Take multiview mode from upstream if present */
1608 ffmpegdec->picture_multiview_mode = GST_VIDEO_INFO_MULTIVIEW_MODE (in_info);
1609 ffmpegdec->picture_multiview_flags =
1610 GST_VIDEO_INFO_MULTIVIEW_FLAGS (in_info);
1612 /* Otherwise, see if there's info in the frame */
1613 if (ffmpegdec->picture_multiview_mode == GST_VIDEO_MULTIVIEW_MODE_NONE) {
1614 AVFrameSideData *side_data =
1615 av_frame_get_side_data (ffmpegdec->picture, AV_FRAME_DATA_STEREO3D);
1617 AVStereo3D *stereo = (AVStereo3D *) side_data->data;
1618 ffmpegdec->picture_multiview_mode = stereo_av_to_gst (stereo->type);
1619 if (stereo->flags & AV_STEREO3D_FLAG_INVERT) {
1620 ffmpegdec->picture_multiview_flags =
1621 GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
1623 ffmpegdec->picture_multiview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
1629 GST_DEBUG_OBJECT (ffmpegdec,
1630 "pts %" G_GUINT64_FORMAT " duration %" G_GUINT64_FORMAT,
1631 out_frame->pts, out_frame->duration);
1632 GST_DEBUG_OBJECT (ffmpegdec, "picture: pts %" G_GUINT64_FORMAT,
1633 (guint64) ffmpegdec->picture->pts);
1634 GST_DEBUG_OBJECT (ffmpegdec, "picture: num %d",
1635 ffmpegdec->picture->coded_picture_number);
1636 GST_DEBUG_OBJECT (ffmpegdec, "picture: display %d",
1637 ffmpegdec->picture->display_picture_number);
1638 GST_DEBUG_OBJECT (ffmpegdec, "picture: opaque %p",
1639 ffmpegdec->picture->opaque);
1640 GST_DEBUG_OBJECT (ffmpegdec, "picture: reordered opaque %" G_GUINT64_FORMAT,
1641 (guint64) ffmpegdec->picture->reordered_opaque);
1642 GST_DEBUG_OBJECT (ffmpegdec, "repeat_pict:%d",
1643 ffmpegdec->picture->repeat_pict);
1644 GST_DEBUG_OBJECT (ffmpegdec, "corrupted frame: %d",
1645 ! !(ffmpegdec->picture->flags & AV_FRAME_FLAG_CORRUPT));
1647 if (!gst_ffmpegviddec_negotiate (ffmpegdec, ffmpegdec->context,
1648 ffmpegdec->picture))
1649 goto negotiation_error;
1651 pool = gst_video_decoder_get_buffer_pool (GST_VIDEO_DECODER (ffmpegdec));
1652 if (G_UNLIKELY (out_frame->output_buffer == NULL)) {
1653 *ret = get_output_buffer (ffmpegdec, out_frame);
1654 } else if (G_UNLIKELY (out_frame->output_buffer->pool != pool)) {
1655 GstBuffer *tmp = out_frame->output_buffer;
1656 out_frame->output_buffer = NULL;
1657 *ret = get_output_buffer (ffmpegdec, out_frame);
1658 gst_buffer_unref (tmp);
1660 #ifndef G_DISABLE_ASSERT
1662 GstVideoMeta *vmeta = gst_buffer_get_video_meta (out_frame->output_buffer);
1664 GstVideoInfo *info = &ffmpegdec->output_state->info;
1665 g_assert ((gint) vmeta->width == GST_VIDEO_INFO_WIDTH (info));
1666 g_assert ((gint) vmeta->height == GST_VIDEO_INFO_HEIGHT (info));
1670 gst_object_unref (pool);
1672 if (G_UNLIKELY (*ret != GST_FLOW_OK))
1675 /* Mark corrupted frames as corrupted */
1676 if (ffmpegdec->picture->flags & AV_FRAME_FLAG_CORRUPT)
1677 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_BUFFER_FLAG_CORRUPTED);
1679 if (ffmpegdec->pic_interlaced) {
1680 /* set interlaced flags */
1681 if (ffmpegdec->picture->repeat_pict)
1682 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_VIDEO_BUFFER_FLAG_RFF);
1683 if (ffmpegdec->picture->top_field_first)
1684 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_VIDEO_BUFFER_FLAG_TFF);
1685 if (ffmpegdec->picture->interlaced_frame)
1686 GST_BUFFER_FLAG_SET (out_frame->output_buffer,
1687 GST_VIDEO_BUFFER_FLAG_INTERLACED);
1691 AVFrameSideData *side_data =
1692 av_frame_get_side_data (ffmpegdec->picture, AV_FRAME_DATA_A53_CC);
1694 GstVideoCaptionMeta *cc_meta = NULL;
1695 gpointer iter = NULL;
1696 gboolean found_708_raw_meta = FALSE;
1698 GST_LOG_OBJECT (ffmpegdec,
1699 "Found CC side data of type AV_FRAME_DATA_A53_CC, size %d",
1701 GST_MEMDUMP ("A53 CC", side_data->data, side_data->size);
1703 while ((cc_meta = (GstVideoCaptionMeta *)
1704 gst_buffer_iterate_meta_filtered (out_frame->input_buffer, &iter,
1705 GST_VIDEO_CAPTION_META_API_TYPE))) {
1706 if (cc_meta->caption_type != GST_VIDEO_CAPTION_TYPE_CEA708_RAW)
1708 found_708_raw_meta = TRUE;
1712 /* do not add CEA 708 caption meta if it already exists */
1713 if (!found_708_raw_meta) {
1714 out_frame->output_buffer =
1715 gst_buffer_make_writable (out_frame->output_buffer);
1716 gst_buffer_add_video_caption_meta (out_frame->output_buffer,
1717 GST_VIDEO_CAPTION_TYPE_CEA708_RAW, side_data->data,
1720 GST_LOG_OBJECT (ffmpegdec,
1721 "CEA 708 caption meta already exists: will not add new caption meta");
1727 /* so we decoded this frame, frames preceding it in decoding order
1728 * that still do not have a buffer allocated seem rather useless,
1729 * and can be discarded, due to e.g. misparsed bogus frame
1730 * or non-keyframe in skipped decoding, ...
1731 * In any case, not likely to be seen again, so discard those,
1732 * before they pile up and/or mess with timestamping */
1735 GstVideoDecoder *dec = GST_VIDEO_DECODER (ffmpegdec);
1736 gboolean old = TRUE;
1738 ol = l = gst_video_decoder_get_frames (dec);
1740 GstVideoCodecFrame *tmp = l->data;
1745 if (old && GST_VIDEO_CODEC_FRAME_IS_DECODE_ONLY (tmp)) {
1746 GST_LOG_OBJECT (dec,
1747 "discarding ghost frame %p (#%d) PTS:%" GST_TIME_FORMAT " DTS:%"
1748 GST_TIME_FORMAT, tmp, tmp->system_frame_number,
1749 GST_TIME_ARGS (tmp->pts), GST_TIME_ARGS (tmp->dts));
1750 /* drop extra ref and remove from frame list */
1751 gst_video_decoder_release_frame (dec, tmp);
1753 /* drop extra ref we got */
1754 gst_video_codec_frame_unref (tmp);
1761 av_frame_unref (ffmpegdec->picture);
1763 /* FIXME: Ideally we would remap the buffer read-only now before pushing but
1764 * libav might still have a reference to it!
1767 gst_video_decoder_finish_frame (GST_VIDEO_DECODER (ffmpegdec), out_frame);
1770 GST_DEBUG_OBJECT (ffmpegdec, "return flow %s, got frame: %d",
1771 gst_flow_get_name (*ret), got_frame);
1777 GST_DEBUG_OBJECT (ffmpegdec, "no output buffer");
1778 gst_video_decoder_drop_frame (GST_VIDEO_DECODER (ffmpegdec), out_frame);
1784 if (GST_PAD_IS_FLUSHING (GST_VIDEO_DECODER_SRC_PAD (ffmpegdec))) {
1785 *ret = GST_FLOW_FLUSHING;
1788 GST_WARNING_OBJECT (ffmpegdec, "Error negotiating format");
1789 *ret = GST_FLOW_NOT_NEGOTIATED;
1795 /* Returns: Whether a frame was decoded */
1797 gst_ffmpegviddec_frame (GstFFMpegVidDec * ffmpegdec, GstVideoCodecFrame * frame,
1798 GstFlowReturn * ret)
1800 gboolean got_frame = FALSE;
1802 if (G_UNLIKELY (ffmpegdec->context->codec == NULL))
1806 ffmpegdec->context->frame_number++;
1808 got_frame = gst_ffmpegviddec_video_frame (ffmpegdec, frame, ret);
1815 GST_ERROR_OBJECT (ffmpegdec, "no codec context");
1816 *ret = GST_FLOW_NOT_NEGOTIATED;
1821 static GstFlowReturn
1822 gst_ffmpegviddec_drain (GstVideoDecoder * decoder)
1824 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1826 gboolean got_frame = FALSE;
1828 if (!ffmpegdec->opened)
1831 if (avcodec_send_packet (ffmpegdec->context, NULL))
1832 goto send_packet_failed;
1835 got_frame = gst_ffmpegviddec_frame (ffmpegdec, NULL, &ret);
1836 } while (got_frame && ret == GST_FLOW_OK);
1837 avcodec_flush_buffers (ffmpegdec->context);
1843 GST_WARNING_OBJECT (ffmpegdec, "send packet failed, could not drain decoder");
1847 static GstFlowReturn
1848 gst_ffmpegviddec_handle_frame (GstVideoDecoder * decoder,
1849 GstVideoCodecFrame * frame)
1851 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1856 GstFlowReturn ret = GST_FLOW_OK;
1859 GST_LOG_OBJECT (ffmpegdec,
1860 "Received new data of size %" G_GSIZE_FORMAT ", dts %" GST_TIME_FORMAT
1861 ", pts:%" GST_TIME_FORMAT ", dur:%" GST_TIME_FORMAT,
1862 gst_buffer_get_size (frame->input_buffer), GST_TIME_ARGS (frame->dts),
1863 GST_TIME_ARGS (frame->pts), GST_TIME_ARGS (frame->duration));
1865 if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
1866 GST_ELEMENT_ERROR (ffmpegdec, STREAM, DECODE, ("Decoding problem"),
1867 ("Failed to map buffer for reading"));
1868 return GST_FLOW_ERROR;
1871 /* treat frame as void until a buffer is requested for it */
1872 GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
1873 GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
1878 if (size > 0 && (!GST_MEMORY_IS_ZERO_PADDED (minfo.memory)
1879 || (minfo.maxsize - minfo.size) < AV_INPUT_BUFFER_PADDING_SIZE)) {
1881 if (ffmpegdec->padded_size < size + AV_INPUT_BUFFER_PADDING_SIZE) {
1882 ffmpegdec->padded_size = size + AV_INPUT_BUFFER_PADDING_SIZE;
1883 ffmpegdec->padded = g_realloc (ffmpegdec->padded, ffmpegdec->padded_size);
1884 GST_LOG_OBJECT (ffmpegdec, "resized padding buffer to %d",
1885 ffmpegdec->padded_size);
1887 GST_CAT_TRACE_OBJECT (GST_CAT_PERFORMANCE, ffmpegdec,
1888 "Copy input to add padding");
1889 memcpy (ffmpegdec->padded, data, size);
1890 memset (ffmpegdec->padded + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1892 data = ffmpegdec->padded;
1895 /* now decode the frame */
1896 gst_avpacket_init (&packet, data, size);
1898 if (ffmpegdec->palette) {
1901 pal = av_packet_new_side_data (&packet, AV_PKT_DATA_PALETTE,
1903 gst_buffer_extract (ffmpegdec->palette, 0, pal, AVPALETTE_SIZE);
1904 GST_DEBUG_OBJECT (ffmpegdec, "copy pal %p %p", &packet, pal);
1910 /* save reference to the timing info */
1911 ffmpegdec->context->reordered_opaque = (gint64) frame->system_frame_number;
1912 ffmpegdec->picture->reordered_opaque = (gint64) frame->system_frame_number;
1914 GST_DEBUG_OBJECT (ffmpegdec, "stored opaque values idx %d",
1915 frame->system_frame_number);
1917 /* This might call into get_buffer() from another thread,
1918 * which would cause a deadlock. Release the lock here
1919 * and taking it again later seems safe
1920 * See https://bugzilla.gnome.org/show_bug.cgi?id=726020
1922 GST_VIDEO_DECODER_STREAM_UNLOCK (ffmpegdec);
1923 if (avcodec_send_packet (ffmpegdec->context, &packet) < 0) {
1924 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
1925 goto send_packet_failed;
1927 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
1930 /* decode a frame of audio/video now */
1931 got_frame = gst_ffmpegviddec_frame (ffmpegdec, frame, &ret);
1933 if (ret != GST_FLOW_OK) {
1934 GST_LOG_OBJECT (ffmpegdec, "breaking because of flow ret %s",
1935 gst_flow_get_name (ret));
1938 } while (got_frame);
1941 gst_buffer_unmap (frame->input_buffer, &minfo);
1942 gst_video_codec_frame_unref (frame);
1948 GST_WARNING_OBJECT (ffmpegdec, "Failed to send data for decoding");
1954 gst_ffmpegviddec_start (GstVideoDecoder * decoder)
1956 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1957 GstFFMpegVidDecClass *oclass;
1959 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
1961 GST_OBJECT_LOCK (ffmpegdec);
1962 gst_ffmpeg_avcodec_close (ffmpegdec->context);
1963 if (avcodec_get_context_defaults3 (ffmpegdec->context, oclass->in_plugin) < 0) {
1964 GST_DEBUG_OBJECT (ffmpegdec, "Failed to set context defaults");
1965 GST_OBJECT_UNLOCK (ffmpegdec);
1968 ffmpegdec->context->opaque = ffmpegdec;
1969 GST_OBJECT_UNLOCK (ffmpegdec);
1975 gst_ffmpegviddec_stop (GstVideoDecoder * decoder)
1977 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1979 GST_OBJECT_LOCK (ffmpegdec);
1980 gst_ffmpegviddec_close (ffmpegdec, FALSE);
1981 GST_OBJECT_UNLOCK (ffmpegdec);
1982 g_free (ffmpegdec->padded);
1983 ffmpegdec->padded = NULL;
1984 ffmpegdec->padded_size = 0;
1985 if (ffmpegdec->input_state)
1986 gst_video_codec_state_unref (ffmpegdec->input_state);
1987 ffmpegdec->input_state = NULL;
1988 if (ffmpegdec->output_state)
1989 gst_video_codec_state_unref (ffmpegdec->output_state);
1990 ffmpegdec->output_state = NULL;
1992 if (ffmpegdec->internal_pool)
1993 gst_object_unref (ffmpegdec->internal_pool);
1994 ffmpegdec->internal_pool = NULL;
1996 ffmpegdec->pic_pix_fmt = 0;
1997 ffmpegdec->pic_width = 0;
1998 ffmpegdec->pic_height = 0;
1999 ffmpegdec->pic_par_n = 0;
2000 ffmpegdec->pic_par_d = 0;
2001 ffmpegdec->pic_interlaced = 0;
2002 ffmpegdec->pic_field_order = 0;
2003 ffmpegdec->pic_field_order_changed = FALSE;
2004 ffmpegdec->ctx_ticks = 0;
2005 ffmpegdec->ctx_time_n = 0;
2006 ffmpegdec->ctx_time_d = 0;
2008 ffmpegdec->pool_width = 0;
2009 ffmpegdec->pool_height = 0;
2010 ffmpegdec->pool_format = 0;
2015 static GstFlowReturn
2016 gst_ffmpegviddec_finish (GstVideoDecoder * decoder)
2018 gst_ffmpegviddec_drain (decoder);
2019 /* note that finish can and should clean up more drastically,
2020 * but drain is also invoked on e.g. packet loss in GAP handling */
2021 gst_ffmpegviddec_flush (decoder);
2027 gst_ffmpegviddec_flush (GstVideoDecoder * decoder)
2029 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
2031 if (ffmpegdec->opened) {
2032 GST_LOG_OBJECT (decoder, "flushing buffers");
2033 avcodec_flush_buffers (ffmpegdec->context);
2040 gst_ffmpegviddec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
2042 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
2043 GstVideoCodecState *state;
2044 GstBufferPool *pool;
2045 guint size, min, max;
2046 GstStructure *config;
2047 gboolean have_pool, have_videometa, have_alignment, update_pool = FALSE;
2048 GstAllocator *allocator = NULL;
2049 GstAllocationParams params = DEFAULT_ALLOC_PARAM;
2051 have_pool = (gst_query_get_n_allocation_pools (query) != 0);
2053 if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
2057 state = gst_video_decoder_get_output_state (decoder);
2059 if (gst_query_get_n_allocation_params (query) > 0) {
2060 gst_query_parse_nth_allocation_param (query, 0, &allocator, ¶ms);
2061 params.align = MAX (params.align, DEFAULT_STRIDE_ALIGN);
2063 gst_query_add_allocation_param (query, allocator, ¶ms);
2066 gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
2068 /* Don't use pool that can't grow, as we don't know how many buffer we'll
2069 * need, otherwise we may stall */
2070 if (max != 0 && max < REQUIRED_POOL_MAX_BUFFERS) {
2071 gst_object_unref (pool);
2072 pool = gst_video_buffer_pool_new ();
2077 /* if there is an allocator, also drop it, as it might be the reason we
2078 * have this limit. Default will be used */
2080 gst_object_unref (allocator);
2085 config = gst_buffer_pool_get_config (pool);
2086 gst_buffer_pool_config_set_params (config, state->caps, size, min, max);
2087 gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
2090 gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
2093 gst_buffer_pool_config_add_option (config,
2094 GST_BUFFER_POOL_OPTION_VIDEO_META);
2097 gst_buffer_pool_has_option (pool, GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
2099 /* If we have videometa, we never have to copy */
2100 if (have_videometa && have_pool && have_alignment &&
2101 gst_ffmpegviddec_can_direct_render (ffmpegdec)) {
2102 GstStructure *config_copy = gst_structure_copy (config);
2104 gst_ffmpegvideodec_prepare_dr_pool (ffmpegdec, pool, &state->info,
2107 /* FIXME validate and retry */
2108 if (gst_buffer_pool_set_config (pool, config_copy)) {
2112 gst_buffer_pool_set_active (pool, TRUE);
2113 ret = gst_buffer_pool_acquire_buffer (pool, &tmp, NULL);
2114 if (ret == GST_FLOW_OK) {
2115 GstVideoMeta *vmeta = gst_buffer_get_video_meta (tmp);
2116 gboolean same_stride = TRUE;
2119 for (i = 0; i < vmeta->n_planes; i++) {
2120 if (vmeta->stride[i] != ffmpegdec->stride[i]) {
2121 same_stride = FALSE;
2126 gst_buffer_unref (tmp);
2129 if (ffmpegdec->internal_pool)
2130 gst_object_unref (ffmpegdec->internal_pool);
2131 ffmpegdec->internal_pool = gst_object_ref (pool);
2132 ffmpegdec->pool_info = state->info;
2133 gst_structure_free (config);
2140 if (have_videometa && ffmpegdec->internal_pool
2141 && ffmpegdec->pool_width == state->info.width
2142 && ffmpegdec->pool_height == state->info.height) {
2144 gst_object_unref (pool);
2145 pool = gst_object_ref (ffmpegdec->internal_pool);
2146 gst_structure_free (config);
2151 if (!gst_buffer_pool_set_config (pool, config)) {
2152 gboolean working_pool = FALSE;
2153 config = gst_buffer_pool_get_config (pool);
2155 if (gst_buffer_pool_config_validate_params (config, state->caps, size, min,
2157 working_pool = gst_buffer_pool_set_config (pool, config);
2159 gst_structure_free (config);
2162 if (!working_pool) {
2163 gst_object_unref (pool);
2164 pool = gst_video_buffer_pool_new ();
2165 config = gst_buffer_pool_get_config (pool);
2166 gst_buffer_pool_config_set_params (config, state->caps, size, min, max);
2167 gst_buffer_pool_config_set_allocator (config, NULL, ¶ms);
2168 gst_buffer_pool_set_config (pool, config);
2176 gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
2178 gst_object_unref (pool);
2180 gst_object_unref (allocator);
2181 gst_video_codec_state_unref (state);
2187 gst_ffmpegviddec_propose_allocation (GstVideoDecoder * decoder,
2190 GstAllocationParams params;
2192 gst_allocation_params_init (¶ms);
2193 params.flags = GST_MEMORY_FLAG_ZERO_PADDED;
2194 params.align = DEFAULT_STRIDE_ALIGN;
2195 params.padding = AV_INPUT_BUFFER_PADDING_SIZE;
2196 /* we would like to have some padding so that we don't have to
2197 * memcpy. We don't suggest an allocator. */
2198 gst_query_add_allocation_param (query, NULL, ¶ms);
2200 return GST_VIDEO_DECODER_CLASS (parent_class)->propose_allocation (decoder,
2205 gst_ffmpegviddec_set_property (GObject * object,
2206 guint prop_id, const GValue * value, GParamSpec * pspec)
2208 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) object;
2212 ffmpegdec->lowres = ffmpegdec->context->lowres = g_value_get_enum (value);
2214 case PROP_SKIPFRAME:
2215 ffmpegdec->skip_frame = ffmpegdec->context->skip_frame =
2216 g_value_get_enum (value);
2218 case PROP_DIRECT_RENDERING:
2219 ffmpegdec->direct_rendering = g_value_get_boolean (value);
2222 ffmpegdec->debug_mv = ffmpegdec->context->debug_mv =
2223 g_value_get_boolean (value);
2225 case PROP_MAX_THREADS:
2226 ffmpegdec->max_threads = g_value_get_int (value);
2228 case PROP_OUTPUT_CORRUPT:
2229 ffmpegdec->output_corrupt = g_value_get_boolean (value);
2231 case PROP_THREAD_TYPE:
2232 ffmpegdec->thread_type = g_value_get_flags (value);
2235 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2241 gst_ffmpegviddec_get_property (GObject * object,
2242 guint prop_id, GValue * value, GParamSpec * pspec)
2244 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) object;
2248 g_value_set_enum (value, ffmpegdec->context->lowres);
2250 case PROP_SKIPFRAME:
2251 g_value_set_enum (value, ffmpegdec->context->skip_frame);
2253 case PROP_DIRECT_RENDERING:
2254 g_value_set_boolean (value, ffmpegdec->direct_rendering);
2257 g_value_set_boolean (value, ffmpegdec->context->debug_mv);
2259 case PROP_MAX_THREADS:
2260 g_value_set_int (value, ffmpegdec->max_threads);
2262 case PROP_OUTPUT_CORRUPT:
2263 g_value_set_boolean (value, ffmpegdec->output_corrupt);
2265 case PROP_THREAD_TYPE:
2266 g_value_set_flags (value, ffmpegdec->thread_type);
2269 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2275 gst_ffmpegviddec_register (GstPlugin * plugin)
2277 GTypeInfo typeinfo = {
2278 sizeof (GstFFMpegVidDecClass),
2279 (GBaseInitFunc) gst_ffmpegviddec_base_init,
2281 (GClassInitFunc) gst_ffmpegviddec_class_init,
2284 sizeof (GstFFMpegVidDec),
2286 (GInstanceInitFunc) gst_ffmpegviddec_init,
2293 GST_LOG ("Registering decoders");
2295 while ((in_plugin = (AVCodec *) av_codec_iterate (&i))) {
2299 /* only video decoders */
2300 if (!av_codec_is_decoder (in_plugin)
2301 || in_plugin->type != AVMEDIA_TYPE_VIDEO)
2304 /* no quasi codecs, please */
2305 if (in_plugin->id == AV_CODEC_ID_RAWVIDEO ||
2306 in_plugin->id == AV_CODEC_ID_V210 ||
2307 in_plugin->id == AV_CODEC_ID_V210X ||
2308 in_plugin->id == AV_CODEC_ID_V308 ||
2309 in_plugin->id == AV_CODEC_ID_V408 ||
2310 in_plugin->id == AV_CODEC_ID_V410 ||
2311 in_plugin->id == AV_CODEC_ID_R210
2312 || in_plugin->id == AV_CODEC_ID_AYUV
2313 || in_plugin->id == AV_CODEC_ID_Y41P
2314 || in_plugin->id == AV_CODEC_ID_012V
2315 || in_plugin->id == AV_CODEC_ID_YUV4
2316 #if AV_VERSION_INT (LIBAVCODEC_VERSION_MAJOR, LIBAVCODEC_VERSION_MINOR, LIBAVCODEC_VERSION_MICRO) >= \
2317 AV_VERSION_INT (57,4,0)
2318 || in_plugin->id == AV_CODEC_ID_WRAPPED_AVFRAME
2320 || in_plugin->id == AV_CODEC_ID_ZLIB) {
2324 /* No decoders depending on external libraries (we don't build them, but
2325 * people who build against an external ffmpeg might have them.
2326 * We have native gstreamer plugins for all of those libraries anyway. */
2327 if (!strncmp (in_plugin->name, "lib", 3)) {
2329 ("Not using external library decoder %s. Use the gstreamer-native ones instead.",
2334 /* Skip hardware or hybrid (hardware with software fallback) */
2335 if ((in_plugin->capabilities & AV_CODEC_CAP_HARDWARE) ==
2336 AV_CODEC_CAP_HARDWARE) {
2338 ("Ignoring hardware decoder %s. We can't handle this outside of ffmpeg",
2343 if ((in_plugin->capabilities & AV_CODEC_CAP_HYBRID) == AV_CODEC_CAP_HYBRID) {
2345 ("Ignoring hybrid decoder %s. We can't handle this outside of ffmpeg",
2350 /* No vdpau plugins until we can figure out how to properly use them
2351 * outside of ffmpeg. */
2352 if (g_str_has_suffix (in_plugin->name, "_vdpau")) {
2354 ("Ignoring VDPAU decoder %s. We can't handle this outside of ffmpeg",
2359 if (g_str_has_suffix (in_plugin->name, "_xvmc")) {
2361 ("Ignoring XVMC decoder %s. We can't handle this outside of ffmpeg",
2366 if (strstr (in_plugin->name, "vaapi")) {
2368 ("Ignoring VAAPI decoder %s. We can't handle this outside of ffmpeg",
2373 if (g_str_has_suffix (in_plugin->name, "_qsv")) {
2375 ("Ignoring qsv decoder %s. We can't handle this outside of ffmpeg",
2380 GST_DEBUG ("Trying plugin %s [%s]", in_plugin->name, in_plugin->long_name);
2382 /* no codecs for which we're GUARANTEED to have better alternatives */
2383 /* MPEG1VIDEO : the mpeg2video decoder is preferred */
2384 /* MP1 : Use MP3 for decoding */
2385 /* MP2 : Use MP3 for decoding */
2386 /* Theora: Use libtheora based theoradec */
2387 /* CDG: use cdgdec */
2388 if (!strcmp (in_plugin->name, "theora") ||
2389 !strcmp (in_plugin->name, "mpeg1video") ||
2390 strstr (in_plugin->name, "crystalhd") != NULL ||
2391 !strcmp (in_plugin->name, "ass") ||
2392 !strcmp (in_plugin->name, "srt") ||
2393 !strcmp (in_plugin->name, "pgssub") ||
2394 !strcmp (in_plugin->name, "dvdsub") ||
2395 !strcmp (in_plugin->name, "dvbsub") ||
2396 !strcmp (in_plugin->name, "cdgraphics")) {
2397 GST_LOG ("Ignoring decoder %s", in_plugin->name);
2401 /* construct the type */
2402 if (!strcmp (in_plugin->name, "hevc")) {
2403 plugin_name = g_strdup ("h265");
2405 plugin_name = g_strdup ((gchar *) in_plugin->name);
2407 g_strdelimit (plugin_name, NULL, '_');
2408 type_name = g_strdup_printf ("avdec_%s", plugin_name);
2409 g_free (plugin_name);
2411 type = g_type_from_name (type_name);
2414 /* create the gtype now */
2416 g_type_register_static (GST_TYPE_VIDEO_DECODER, type_name, &typeinfo,
2418 g_type_set_qdata (type, GST_FFDEC_PARAMS_QDATA, (gpointer) in_plugin);
2421 /* (Ronald) MPEG-4 gets a higher priority because it has been well-
2422 * tested and by far outperforms divxdec/xviddec - so we prefer it.
2423 * msmpeg4v3 same, as it outperforms divxdec for divx3 playback.
2424 * VC1/WMV3 are not working and thus unpreferred for now. */
2425 switch (in_plugin->id) {
2426 case AV_CODEC_ID_MPEG1VIDEO:
2427 case AV_CODEC_ID_MPEG2VIDEO:
2428 case AV_CODEC_ID_MPEG4:
2429 case AV_CODEC_ID_MSMPEG4V3:
2430 case AV_CODEC_ID_H264:
2431 case AV_CODEC_ID_HEVC:
2432 case AV_CODEC_ID_RV10:
2433 case AV_CODEC_ID_RV20:
2434 case AV_CODEC_ID_RV30:
2435 case AV_CODEC_ID_RV40:
2436 rank = GST_RANK_PRIMARY;
2438 /* DVVIDEO: we have a good dv decoder, fast on both ppc as well as x86.
2439 * They say libdv's quality is better though. leave as secondary.
2440 * note: if you change this, see the code in gstdv.c in good/ext/dv.
2442 case AV_CODEC_ID_DVVIDEO:
2443 rank = GST_RANK_SECONDARY;
2446 rank = GST_RANK_MARGINAL;
2449 if (!gst_element_register (plugin, type_name, rank, type)) {
2450 g_warning ("Failed to register %s", type_name);
2458 GST_LOG ("Finished Registering decoders");