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>
30 #include <gst/video/video.h>
31 #include <gst/video/gstvideodecoder.h>
32 #include <gst/video/gstvideometa.h>
33 #include <gst/video/gstvideopool.h>
36 #include "gstavcodecmap.h"
37 #include "gstavutils.h"
38 #include "gstavviddec.h"
40 #define MAX_TS_MASK 0xff
42 #define DEFAULT_LOWRES 0
43 #define DEFAULT_SKIPFRAME 0
44 #define DEFAULT_DIRECT_RENDERING TRUE
45 #define DEFAULT_DEBUG_MV FALSE
46 #define DEFAULT_MAX_THREADS 0
47 #define DEFAULT_OUTPUT_CORRUPT TRUE
48 #define REQUIRED_POOL_MAX_BUFFERS 32
49 #define DEFAULT_STRIDE_ALIGN 31
50 #define DEFAULT_ALLOC_PARAM { 0, DEFAULT_STRIDE_ALIGN, 0, 0, }
57 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;
150 gst_ffmpegviddec_base_init (GstFFMpegVidDecClass * klass)
152 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
153 GstPadTemplate *sinktempl, *srctempl;
154 GstCaps *sinkcaps, *srccaps;
156 gchar *longname, *description;
159 (AVCodec *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass),
160 GST_FFDEC_PARAMS_QDATA);
161 g_assert (in_plugin != NULL);
163 /* construct the element details struct */
164 longname = g_strdup_printf ("libav %s decoder", in_plugin->long_name);
165 description = g_strdup_printf ("libav %s decoder", in_plugin->name);
166 gst_element_class_set_metadata (element_class, longname,
167 "Codec/Decoder/Video", description,
168 "Wim Taymans <wim.taymans@gmail.com>, "
169 "Ronald Bultje <rbultje@ronald.bitfreak.net>, "
170 "Edward Hervey <bilboed@bilboed.com>");
172 g_free (description);
175 sinkcaps = gst_ffmpeg_codecid_to_caps (in_plugin->id, NULL, FALSE);
177 GST_DEBUG ("Couldn't get sink caps for decoder '%s'", in_plugin->name);
178 sinkcaps = gst_caps_new_empty_simple ("unknown/unknown");
180 srccaps = gst_ffmpeg_codectype_to_video_caps (NULL,
181 in_plugin->id, FALSE, in_plugin);
183 GST_DEBUG ("Couldn't get source caps for decoder '%s'", in_plugin->name);
184 srccaps = gst_caps_from_string ("video/x-raw");
188 sinktempl = gst_pad_template_new ("sink", GST_PAD_SINK,
189 GST_PAD_ALWAYS, sinkcaps);
190 srctempl = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, srccaps);
192 gst_element_class_add_pad_template (element_class, srctempl);
193 gst_element_class_add_pad_template (element_class, sinktempl);
195 klass->in_plugin = in_plugin;
199 gst_ffmpegviddec_class_init (GstFFMpegVidDecClass * klass)
201 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
202 GstVideoDecoderClass *viddec_class = GST_VIDEO_DECODER_CLASS (klass);
205 parent_class = g_type_class_peek_parent (klass);
207 gobject_class->finalize = gst_ffmpegviddec_finalize;
209 gobject_class->set_property = gst_ffmpegviddec_set_property;
210 gobject_class->get_property = gst_ffmpegviddec_get_property;
212 g_object_class_install_property (gobject_class, PROP_SKIPFRAME,
213 g_param_spec_enum ("skip-frame", "Skip frames",
214 "Which types of frames to skip during decoding",
215 GST_FFMPEGVIDDEC_TYPE_SKIPFRAME, 0,
216 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
217 g_object_class_install_property (gobject_class, PROP_LOWRES,
218 g_param_spec_enum ("lowres", "Low resolution",
219 "At which resolution to decode images",
220 GST_FFMPEGVIDDEC_TYPE_LOWRES, 0,
221 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
222 g_object_class_install_property (gobject_class, PROP_DIRECT_RENDERING,
223 g_param_spec_boolean ("direct-rendering", "Direct Rendering",
224 "Enable direct rendering", DEFAULT_DIRECT_RENDERING,
225 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
226 g_object_class_install_property (gobject_class, PROP_DEBUG_MV,
227 g_param_spec_boolean ("debug-mv", "Debug motion vectors",
228 "Whether libav should print motion vectors on top of the image",
229 DEFAULT_DEBUG_MV, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
230 g_object_class_install_property (gobject_class, PROP_OUTPUT_CORRUPT,
231 g_param_spec_boolean ("output-corrupt", "Output corrupt buffers",
232 "Whether libav should output frames even if corrupted",
233 DEFAULT_OUTPUT_CORRUPT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
235 caps = klass->in_plugin->capabilities;
236 if (caps & (CODEC_CAP_FRAME_THREADS | CODEC_CAP_SLICE_THREADS)) {
237 g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_THREADS,
238 g_param_spec_int ("max-threads", "Maximum decode threads",
239 "Maximum number of worker threads to spawn. (0 = auto)",
240 0, G_MAXINT, DEFAULT_MAX_THREADS,
241 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
244 viddec_class->set_format = gst_ffmpegviddec_set_format;
245 viddec_class->handle_frame = gst_ffmpegviddec_handle_frame;
246 viddec_class->start = gst_ffmpegviddec_start;
247 viddec_class->stop = gst_ffmpegviddec_stop;
248 viddec_class->flush = gst_ffmpegviddec_flush;
249 viddec_class->finish = gst_ffmpegviddec_finish;
250 viddec_class->drain = gst_ffmpegviddec_drain;
251 viddec_class->decide_allocation = gst_ffmpegviddec_decide_allocation;
252 viddec_class->propose_allocation = gst_ffmpegviddec_propose_allocation;
256 gst_ffmpegviddec_init (GstFFMpegVidDec * ffmpegdec)
258 GstFFMpegVidDecClass *klass =
259 (GstFFMpegVidDecClass *) G_OBJECT_GET_CLASS (ffmpegdec);
261 /* some ffmpeg data */
262 ffmpegdec->context = avcodec_alloc_context3 (klass->in_plugin);
263 ffmpegdec->context->opaque = ffmpegdec;
264 ffmpegdec->picture = av_frame_alloc ();
265 ffmpegdec->opened = FALSE;
266 ffmpegdec->skip_frame = ffmpegdec->lowres = 0;
267 ffmpegdec->direct_rendering = DEFAULT_DIRECT_RENDERING;
268 ffmpegdec->debug_mv = DEFAULT_DEBUG_MV;
269 ffmpegdec->max_threads = DEFAULT_MAX_THREADS;
270 ffmpegdec->output_corrupt = DEFAULT_OUTPUT_CORRUPT;
272 GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (ffmpegdec));
273 gst_video_decoder_set_use_default_pad_acceptcaps (GST_VIDEO_DECODER_CAST
276 gst_video_decoder_set_needs_format (GST_VIDEO_DECODER (ffmpegdec), TRUE);
280 gst_ffmpegviddec_finalize (GObject * object)
282 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) object;
284 av_frame_free (&ffmpegdec->picture);
286 if (ffmpegdec->context != NULL) {
287 gst_ffmpeg_avcodec_close (ffmpegdec->context);
288 av_free (ffmpegdec->context);
289 ffmpegdec->context = NULL;
292 G_OBJECT_CLASS (parent_class)->finalize (object);
296 gst_ffmpegviddec_context_set_flags (AVCodecContext * context, guint flags,
299 g_return_if_fail (context != NULL);
302 context->flags |= flags;
304 context->flags &= ~flags;
309 gst_ffmpegviddec_close (GstFFMpegVidDec * ffmpegdec, gboolean reset)
311 GstFFMpegVidDecClass *oclass;
314 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
316 GST_LOG_OBJECT (ffmpegdec, "closing ffmpeg codec");
318 gst_caps_replace (&ffmpegdec->last_caps, NULL);
320 gst_ffmpeg_avcodec_close (ffmpegdec->context);
321 ffmpegdec->opened = FALSE;
323 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
324 ffmpegdec->stride[i] = -1;
326 gst_buffer_replace (&ffmpegdec->palette, NULL);
328 if (ffmpegdec->context->extradata) {
329 av_free (ffmpegdec->context->extradata);
330 ffmpegdec->context->extradata = NULL;
333 if (avcodec_get_context_defaults3 (ffmpegdec->context,
334 oclass->in_plugin) < 0) {
335 GST_DEBUG_OBJECT (ffmpegdec, "Failed to set context defaults");
338 ffmpegdec->context->opaque = ffmpegdec;
345 gst_ffmpegviddec_open (GstFFMpegVidDec * ffmpegdec)
347 GstFFMpegVidDecClass *oclass;
350 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
352 if (gst_ffmpeg_avcodec_open (ffmpegdec->context, oclass->in_plugin) < 0)
355 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
356 ffmpegdec->stride[i] = -1;
358 ffmpegdec->opened = TRUE;
360 GST_LOG_OBJECT (ffmpegdec, "Opened libav codec %s, id %d",
361 oclass->in_plugin->name, oclass->in_plugin->id);
363 gst_ffmpegviddec_context_set_flags (ffmpegdec->context,
364 CODEC_FLAG_OUTPUT_CORRUPT, ffmpegdec->output_corrupt);
371 gst_ffmpegviddec_close (ffmpegdec, TRUE);
372 GST_DEBUG_OBJECT (ffmpegdec, "avdec_%s: Failed to open libav codec",
373 oclass->in_plugin->name);
379 gst_ffmpegviddec_get_palette (GstFFMpegVidDec * ffmpegdec,
380 GstVideoCodecState * state)
382 GstStructure *str = gst_caps_get_structure (state->caps, 0);
383 const GValue *palette_v;
386 /* do we have a palette? */
387 if ((palette_v = gst_structure_get_value (str, "palette_data"))) {
388 palette = gst_value_get_buffer (palette_v);
389 GST_DEBUG ("got palette data %p", palette);
390 if (gst_buffer_get_size (palette) >= AVPALETTE_SIZE) {
391 gst_buffer_replace (&ffmpegdec->palette, palette);
398 gst_ffmpegviddec_set_format (GstVideoDecoder * decoder,
399 GstVideoCodecState * state)
401 GstFFMpegVidDec *ffmpegdec;
402 GstFFMpegVidDecClass *oclass;
403 GstClockTime latency = GST_CLOCK_TIME_NONE;
404 gboolean ret = FALSE;
406 ffmpegdec = (GstFFMpegVidDec *) decoder;
407 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
409 if (ffmpegdec->last_caps != NULL &&
410 gst_caps_is_equal (ffmpegdec->last_caps, state->caps)) {
414 GST_DEBUG_OBJECT (ffmpegdec, "setcaps called");
416 GST_OBJECT_LOCK (ffmpegdec);
417 /* stupid check for VC1 */
418 if ((oclass->in_plugin->id == AV_CODEC_ID_WMV3) ||
419 (oclass->in_plugin->id == AV_CODEC_ID_VC1))
420 oclass->in_plugin->id = gst_ffmpeg_caps_to_codecid (state->caps, NULL);
422 /* close old session */
423 if (ffmpegdec->opened) {
424 GST_OBJECT_UNLOCK (ffmpegdec);
425 gst_ffmpegviddec_finish (decoder);
426 GST_OBJECT_LOCK (ffmpegdec);
427 if (!gst_ffmpegviddec_close (ffmpegdec, TRUE)) {
428 GST_OBJECT_UNLOCK (ffmpegdec);
431 ffmpegdec->pic_pix_fmt = 0;
432 ffmpegdec->pic_width = 0;
433 ffmpegdec->pic_height = 0;
434 ffmpegdec->pic_par_n = 0;
435 ffmpegdec->pic_par_d = 0;
436 ffmpegdec->ctx_ticks = 0;
437 ffmpegdec->ctx_time_n = 0;
438 ffmpegdec->ctx_time_d = 0;
441 gst_caps_replace (&ffmpegdec->last_caps, state->caps);
443 /* set buffer functions */
444 ffmpegdec->context->get_buffer2 = gst_ffmpegviddec_get_buffer2;
445 ffmpegdec->context->draw_horiz_band = NULL;
447 /* reset coded_width/_height to prevent it being reused from last time when
448 * the codec is opened again, causing a mismatch and possible
449 * segfault/corruption. (Common scenario when renegotiating caps) */
450 ffmpegdec->context->coded_width = 0;
451 ffmpegdec->context->coded_height = 0;
453 GST_LOG_OBJECT (ffmpegdec, "size %dx%d", ffmpegdec->context->width,
454 ffmpegdec->context->height);
456 /* FIXME : Create a method that takes GstVideoCodecState instead */
457 /* get size and so */
458 gst_ffmpeg_caps_with_codecid (oclass->in_plugin->id,
459 oclass->in_plugin->type, state->caps, ffmpegdec->context);
461 GST_LOG_OBJECT (ffmpegdec, "size after %dx%d", ffmpegdec->context->width,
462 ffmpegdec->context->height);
464 gst_ffmpegviddec_get_palette (ffmpegdec, state);
466 if (!ffmpegdec->context->time_base.den || !ffmpegdec->context->time_base.num) {
467 GST_DEBUG_OBJECT (ffmpegdec, "forcing 25/1 framerate");
468 ffmpegdec->context->time_base.num = 1;
469 ffmpegdec->context->time_base.den = 25;
472 /* workaround encoder bugs */
473 ffmpegdec->context->workaround_bugs |= FF_BUG_AUTODETECT;
474 ffmpegdec->context->err_recognition = 1;
477 ffmpegdec->context->lowres = ffmpegdec->lowres;
478 ffmpegdec->context->skip_frame = ffmpegdec->skip_frame;
480 /* ffmpeg can draw motion vectors on top of the image (not every decoder
482 ffmpegdec->context->debug_mv = ffmpegdec->debug_mv;
488 if (ffmpegdec->max_threads == 0) {
489 if (!(oclass->in_plugin->capabilities & CODEC_CAP_AUTO_THREADS))
490 ffmpegdec->context->thread_count = gst_ffmpeg_auto_max_threads ();
492 ffmpegdec->context->thread_count = 0;
494 ffmpegdec->context->thread_count = ffmpegdec->max_threads;
496 query = gst_query_new_latency ();
498 /* Check if upstream is live. If it isn't we can enable frame based
499 * threading, which is adding latency */
500 if (gst_pad_peer_query (GST_VIDEO_DECODER_SINK_PAD (ffmpegdec), query)) {
501 gst_query_parse_latency (query, &is_live, NULL, NULL);
503 gst_query_unref (query);
506 ffmpegdec->context->thread_type = FF_THREAD_SLICE;
508 ffmpegdec->context->thread_type = FF_THREAD_SLICE | FF_THREAD_FRAME;
511 /* open codec - we don't select an output pix_fmt yet,
512 * simply because we don't know! We only get it
513 * during playback... */
514 if (!gst_ffmpegviddec_open (ffmpegdec))
517 if (ffmpegdec->input_state)
518 gst_video_codec_state_unref (ffmpegdec->input_state);
519 ffmpegdec->input_state = gst_video_codec_state_ref (state);
521 if (ffmpegdec->input_state->info.fps_n) {
522 GstVideoInfo *info = &ffmpegdec->input_state->info;
523 latency = gst_util_uint64_scale_ceil (
524 (ffmpegdec->context->has_b_frames) * GST_SECOND, info->fps_d,
531 GST_OBJECT_UNLOCK (ffmpegdec);
533 if (GST_CLOCK_TIME_IS_VALID (latency))
534 gst_video_decoder_set_latency (decoder, latency, latency);
541 GST_DEBUG_OBJECT (ffmpegdec, "Failed to open");
548 GstFFMpegVidDec *ffmpegdec;
549 GstVideoCodecFrame *frame;
551 GstVideoFrame vframe;
553 AVBufferRef *avbuffer;
554 } GstFFMpegVidDecVideoFrame;
556 static GstFFMpegVidDecVideoFrame *
557 gst_ffmpegviddec_video_frame_new (GstFFMpegVidDec * ffmpegdec,
558 GstVideoCodecFrame * frame)
560 GstFFMpegVidDecVideoFrame *dframe;
562 dframe = g_slice_new0 (GstFFMpegVidDecVideoFrame);
563 dframe->ffmpegdec = ffmpegdec;
564 dframe->frame = frame;
566 GST_DEBUG_OBJECT (ffmpegdec, "new video frame %p", dframe);
572 gst_ffmpegviddec_video_frame_free (GstFFMpegVidDec * ffmpegdec,
573 GstFFMpegVidDecVideoFrame * frame)
575 GST_DEBUG_OBJECT (ffmpegdec, "free video frame %p", frame);
578 gst_video_frame_unmap (&frame->vframe);
579 gst_video_decoder_release_frame (GST_VIDEO_DECODER (ffmpegdec), frame->frame);
580 gst_buffer_replace (&frame->buffer, NULL);
581 if (frame->avbuffer) {
582 av_buffer_unref (&frame->avbuffer);
584 g_slice_free (GstFFMpegVidDecVideoFrame, frame);
588 dummy_free_buffer (void *opaque, uint8_t * data)
590 GstFFMpegVidDecVideoFrame *frame = opaque;
592 gst_ffmpegviddec_video_frame_free (frame->ffmpegdec, frame);
595 /* This function prepares the pool configuration for direct rendering. To use
596 * this method, the codec should support direct rendering and the pool should
597 * support video meta and video alignment */
599 gst_ffmpegvideodec_prepare_dr_pool (GstFFMpegVidDec * ffmpegdec,
600 GstBufferPool * pool, GstVideoInfo * info, GstStructure * config)
602 GstAllocationParams params;
603 GstVideoAlignment align;
604 GstAllocator *allocator = NULL;
606 gint linesize_align[4];
611 width = GST_VIDEO_INFO_WIDTH (info);
612 height = GST_VIDEO_INFO_HEIGHT (info);
614 /* let ffmpeg find the alignment and padding */
615 avcodec_align_dimensions2 (ffmpegdec->context, &width, &height,
618 if (ffmpegdec->context->flags & CODEC_FLAG_EMU_EDGE)
621 edge = avcodec_get_edge_width ();
623 /* increase the size for the padding */
627 align.padding_top = edge;
628 align.padding_left = edge;
629 align.padding_right = width - GST_VIDEO_INFO_WIDTH (info) - edge;
630 align.padding_bottom = height - GST_VIDEO_INFO_HEIGHT (info) - edge;
632 /* add extra padding to match libav buffer allocation sizes */
633 align.padding_bottom++;
635 gst_buffer_pool_config_get_allocator (config, &allocator, ¶ms);
637 max_align = DEFAULT_STRIDE_ALIGN;
638 max_align |= params.align;
640 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
641 if (linesize_align[i] > 0)
642 max_align |= linesize_align[i] - 1;
645 for (i = 0; i < GST_VIDEO_MAX_PLANES; i++)
646 align.stride_align[i] = max_align;
648 params.align = max_align;
650 gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
652 GST_DEBUG_OBJECT (ffmpegdec, "aligned dimension %dx%d -> %dx%d "
653 "padding t:%u l:%u r:%u b:%u, stride_align %d:%d:%d:%d",
654 GST_VIDEO_INFO_WIDTH (info),
655 GST_VIDEO_INFO_HEIGHT (info), width, height, align.padding_top,
656 align.padding_left, align.padding_right, align.padding_bottom,
657 align.stride_align[0], align.stride_align[1], align.stride_align[2],
658 align.stride_align[3]);
660 gst_buffer_pool_config_add_option (config,
661 GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
662 gst_buffer_pool_config_set_video_alignment (config, &align);
666 gst_ffmpegviddec_ensure_internal_pool (GstFFMpegVidDec * ffmpegdec,
669 GstAllocationParams params = DEFAULT_ALLOC_PARAM;
671 GstVideoFormat format;
673 GstStructure *config;
676 if (ffmpegdec->internal_pool != NULL &&
677 ffmpegdec->pool_width == picture->width &&
678 ffmpegdec->pool_height == picture->height &&
679 ffmpegdec->pool_format == picture->format)
682 GST_DEBUG_OBJECT (ffmpegdec, "Updating internal pool (%i, %i)",
683 picture->width, picture->height);
685 format = gst_ffmpeg_pixfmt_to_videoformat (picture->format);
686 gst_video_info_set_format (&info, format, picture->width, picture->height);
688 for (i = 0; i < G_N_ELEMENTS (ffmpegdec->stride); i++)
689 ffmpegdec->stride[i] = -1;
691 if (ffmpegdec->internal_pool)
692 gst_object_unref (ffmpegdec->internal_pool);
694 ffmpegdec->internal_pool = gst_video_buffer_pool_new ();
695 config = gst_buffer_pool_get_config (ffmpegdec->internal_pool);
697 caps = gst_video_info_to_caps (&info);
698 gst_buffer_pool_config_set_params (config, caps, info.size, 2, 0);
699 gst_buffer_pool_config_set_allocator (config, NULL, ¶ms);
700 gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
702 gst_ffmpegvideodec_prepare_dr_pool (ffmpegdec,
703 ffmpegdec->internal_pool, &info, config);
704 /* generic video pool never fails */
705 gst_buffer_pool_set_config (ffmpegdec->internal_pool, config);
706 gst_caps_unref (caps);
708 gst_buffer_pool_set_active (ffmpegdec->internal_pool, TRUE);
710 /* Remember pool size so we can detect changes */
711 ffmpegdec->pool_width = picture->width;
712 ffmpegdec->pool_height = picture->height;
713 ffmpegdec->pool_format = picture->format;
714 ffmpegdec->pool_info = info;
718 gst_ffmpegviddec_can_direct_render (GstFFMpegVidDec * ffmpegdec)
720 GstFFMpegVidDecClass *oclass;
722 if (!ffmpegdec->direct_rendering)
725 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
726 return ((oclass->in_plugin->capabilities & CODEC_CAP_DR1) == CODEC_CAP_DR1);
729 /* called when ffmpeg wants us to allocate a buffer to write the decoded frame
730 * into. We try to give it memory from our pool */
732 gst_ffmpegviddec_get_buffer2 (AVCodecContext * context, AVFrame * picture,
735 GstVideoCodecFrame *frame;
736 GstFFMpegVidDecVideoFrame *dframe;
737 GstFFMpegVidDec *ffmpegdec;
741 ffmpegdec = (GstFFMpegVidDec *) context->opaque;
743 GST_DEBUG_OBJECT (ffmpegdec, "getting buffer picture %p", picture);
745 /* apply the last info we have seen to this picture, when we get the
746 * picture back from ffmpeg we can use this to correctly timestamp the output
748 GST_DEBUG_OBJECT (ffmpegdec, "opaque value SN %d",
749 (gint32) picture->reordered_opaque);
752 gst_video_decoder_get_frame (GST_VIDEO_DECODER (ffmpegdec),
753 picture->reordered_opaque);
754 if (G_UNLIKELY (frame == NULL))
757 /* now it has a buffer allocated, so it is real and will also
759 GST_VIDEO_CODEC_FRAME_FLAG_UNSET (frame,
760 GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
762 if (G_UNLIKELY (frame->output_buffer != NULL))
763 goto duplicate_frame;
765 /* GstFFMpegVidDecVideoFrame receives the frame ref */
766 if (picture->opaque) {
767 dframe = picture->opaque;
768 dframe->frame = frame;
770 picture->opaque = dframe =
771 gst_ffmpegviddec_video_frame_new (ffmpegdec, frame);
774 GST_DEBUG_OBJECT (ffmpegdec, "storing opaque %p", dframe);
776 if (!gst_ffmpegviddec_can_direct_render (ffmpegdec))
779 gst_ffmpegviddec_ensure_internal_pool (ffmpegdec, picture);
781 ret = gst_buffer_pool_acquire_buffer (ffmpegdec->internal_pool,
782 &frame->output_buffer, NULL);
783 if (ret != GST_FLOW_OK)
786 /* piggy-backed alloc'ed on the frame,
787 * and there was much rejoicing and we are grateful.
788 * Now take away buffer from frame, we will give it back later when decoded.
789 * This allows multiple request for a buffer per frame; unusual but possible. */
790 gst_buffer_replace (&dframe->buffer, frame->output_buffer);
791 gst_buffer_replace (&frame->output_buffer, NULL);
794 if (!gst_video_frame_map (&dframe->vframe, &ffmpegdec->pool_info,
795 dframe->buffer, GST_MAP_READWRITE))
797 dframe->mapped = TRUE;
799 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
800 if (c < GST_VIDEO_INFO_N_PLANES (&ffmpegdec->pool_info)) {
801 picture->data[c] = GST_VIDEO_FRAME_PLANE_DATA (&dframe->vframe, c);
802 picture->linesize[c] = GST_VIDEO_FRAME_PLANE_STRIDE (&dframe->vframe, c);
804 if (ffmpegdec->stride[c] == -1)
805 ffmpegdec->stride[c] = picture->linesize[c];
807 /* libav does not allow stride changes, decide allocation should check
808 * before replacing the internal pool with a downstream pool.
809 * https://bugzilla.gnome.org/show_bug.cgi?id=704769
810 * https://bugzilla.libav.org/show_bug.cgi?id=556
812 g_assert (picture->linesize[c] == ffmpegdec->stride[c]);
814 picture->data[c] = NULL;
815 picture->linesize[c] = 0;
817 GST_LOG_OBJECT (ffmpegdec, "linesize %d, data %p", picture->linesize[c],
821 picture->buf[0] = av_buffer_create (NULL, 0, dummy_free_buffer, dframe, 0);
823 GST_LOG_OBJECT (ffmpegdec, "returned frame %p", dframe->buffer);
830 int ret = avcodec_default_get_buffer2 (context, picture, flags);
832 GST_LOG_OBJECT (ffmpegdec, "direct rendering disabled, fallback alloc");
834 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
835 ffmpegdec->stride[c] = picture->linesize[c];
837 /* Wrap our buffer around the default one to be able to have a callback
838 * when our data can be freed. Just putting our data into the first free
839 * buffer might not work if there are too many allocated already
841 if (picture->buf[0]) {
842 dframe->avbuffer = picture->buf[0];
844 av_buffer_create (picture->buf[0]->data, picture->buf[0]->size,
845 dummy_free_buffer, dframe, 0);
848 av_buffer_create (NULL, 0, dummy_free_buffer, dframe, 0);
855 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, FAILED,
856 ("Unable to allocate memory"),
857 ("The downstream pool failed to allocated buffer."));
862 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, OPEN_READ_WRITE,
863 ("Cannot access memory for read and write operation."),
864 ("The video memory allocated from downstream pool could not mapped for"
870 GST_WARNING_OBJECT (ffmpegdec, "already alloc'ed output buffer for frame");
871 gst_video_codec_frame_unref (frame);
876 GST_WARNING_OBJECT (ffmpegdec, "Couldn't get codec frame !");
882 picture_changed (GstFFMpegVidDec * ffmpegdec, AVFrame * picture)
884 return !(ffmpegdec->pic_width == picture->width
885 && ffmpegdec->pic_height == picture->height
886 && ffmpegdec->pic_pix_fmt == picture->format
887 && ffmpegdec->pic_par_n == picture->sample_aspect_ratio.num
888 && ffmpegdec->pic_par_d == picture->sample_aspect_ratio.den
889 && ffmpegdec->pic_interlaced == picture->interlaced_frame);
893 context_changed (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context)
895 return !(ffmpegdec->ctx_ticks == context->ticks_per_frame
896 && ffmpegdec->ctx_time_n == context->time_base.num
897 && ffmpegdec->ctx_time_d == context->time_base.den);
901 update_video_context (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context,
904 if (!picture_changed (ffmpegdec, picture)
905 && !context_changed (ffmpegdec, context))
908 GST_DEBUG_OBJECT (ffmpegdec,
909 "Renegotiating video from %dx%d@ %d:%d PAR %d/%d fps pixfmt %d to %dx%d@ %d:%d PAR %d/%d fps pixfmt %d",
910 ffmpegdec->pic_width, ffmpegdec->pic_height,
911 ffmpegdec->pic_par_n, ffmpegdec->pic_par_d,
912 ffmpegdec->ctx_time_n, ffmpegdec->ctx_time_d,
913 ffmpegdec->pic_pix_fmt,
914 picture->width, picture->height,
915 picture->sample_aspect_ratio.num,
916 picture->sample_aspect_ratio.den,
917 context->time_base.num, context->time_base.den, picture->format);
919 ffmpegdec->pic_pix_fmt = picture->format;
920 ffmpegdec->pic_width = picture->width;
921 ffmpegdec->pic_height = picture->height;
922 ffmpegdec->pic_par_n = picture->sample_aspect_ratio.num;
923 ffmpegdec->pic_par_d = picture->sample_aspect_ratio.den;
924 ffmpegdec->pic_interlaced = picture->interlaced_frame;
925 ffmpegdec->ctx_ticks = context->ticks_per_frame;
926 ffmpegdec->ctx_time_n = context->time_base.num;
927 ffmpegdec->ctx_time_d = context->time_base.den;
933 gst_ffmpegviddec_update_par (GstFFMpegVidDec * ffmpegdec,
934 GstVideoInfo * in_info, GstVideoInfo * out_info)
936 gboolean demuxer_par_set = FALSE;
937 gboolean decoder_par_set = FALSE;
938 gint demuxer_num = 1, demuxer_denom = 1;
939 gint decoder_num = 1, decoder_denom = 1;
941 if (in_info->par_n && in_info->par_d) {
942 demuxer_num = in_info->par_n;
943 demuxer_denom = in_info->par_d;
944 demuxer_par_set = TRUE;
945 GST_DEBUG_OBJECT (ffmpegdec, "Demuxer PAR: %d:%d", demuxer_num,
949 if (ffmpegdec->pic_par_n && ffmpegdec->pic_par_d) {
950 decoder_num = ffmpegdec->pic_par_n;
951 decoder_denom = ffmpegdec->pic_par_d;
952 decoder_par_set = TRUE;
953 GST_DEBUG_OBJECT (ffmpegdec, "Decoder PAR: %d:%d", decoder_num,
957 if (!demuxer_par_set && !decoder_par_set)
960 if (demuxer_par_set && !decoder_par_set)
961 goto use_demuxer_par;
963 if (decoder_par_set && !demuxer_par_set)
964 goto use_decoder_par;
966 /* Both the demuxer and the decoder provide a PAR. If one of
967 * the two PARs is 1:1 and the other one is not, use the one
968 * that is not 1:1. */
969 if (demuxer_num == demuxer_denom && decoder_num != decoder_denom)
970 goto use_decoder_par;
972 if (decoder_num == decoder_denom && demuxer_num != demuxer_denom)
973 goto use_demuxer_par;
975 /* Both PARs are non-1:1, so use the PAR provided by the demuxer */
976 goto use_demuxer_par;
980 GST_DEBUG_OBJECT (ffmpegdec,
981 "Setting decoder provided pixel-aspect-ratio of %u:%u", decoder_num,
983 out_info->par_n = decoder_num;
984 out_info->par_d = decoder_denom;
989 GST_DEBUG_OBJECT (ffmpegdec,
990 "Setting demuxer provided pixel-aspect-ratio of %u:%u", demuxer_num,
992 out_info->par_n = demuxer_num;
993 out_info->par_d = demuxer_denom;
998 GST_DEBUG_OBJECT (ffmpegdec,
999 "Neither demuxer nor codec provide a pixel-aspect-ratio");
1000 out_info->par_n = 1;
1001 out_info->par_d = 1;
1007 gst_ffmpegviddec_negotiate (GstFFMpegVidDec * ffmpegdec,
1008 AVCodecContext * context, AVFrame * picture)
1011 GstVideoInfo *in_info, *out_info;
1012 GstVideoCodecState *output_state;
1014 GstClockTime latency;
1016 if (!update_video_context (ffmpegdec, context, picture))
1019 fmt = gst_ffmpeg_pixfmt_to_videoformat (ffmpegdec->pic_pix_fmt);
1020 if (G_UNLIKELY (fmt == GST_VIDEO_FORMAT_UNKNOWN))
1021 goto unknown_format;
1024 gst_video_decoder_set_output_state (GST_VIDEO_DECODER (ffmpegdec), fmt,
1025 ffmpegdec->pic_width, ffmpegdec->pic_height, ffmpegdec->input_state);
1026 if (ffmpegdec->output_state)
1027 gst_video_codec_state_unref (ffmpegdec->output_state);
1028 ffmpegdec->output_state = output_state;
1030 in_info = &ffmpegdec->input_state->info;
1031 out_info = &ffmpegdec->output_state->info;
1033 /* set the interlaced flag */
1034 if (ffmpegdec->pic_interlaced)
1035 out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED;
1037 out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
1039 switch (context->chroma_sample_location) {
1041 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_MPEG2;
1044 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_JPEG;
1047 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_DV;
1050 out_info->chroma_site = GST_VIDEO_CHROMA_SITE_V_COSITED;
1056 /* try to find a good framerate */
1057 if ((in_info->fps_d && in_info->fps_n) ||
1058 GST_VIDEO_INFO_FLAG_IS_SET (in_info, GST_VIDEO_FLAG_VARIABLE_FPS)) {
1059 /* take framerate from input when it was specified (#313970) */
1060 fps_n = in_info->fps_n;
1061 fps_d = in_info->fps_d;
1063 fps_n = ffmpegdec->ctx_time_d / ffmpegdec->ctx_ticks;
1064 fps_d = ffmpegdec->ctx_time_n;
1067 GST_LOG_OBJECT (ffmpegdec, "invalid framerate: %d/0, -> %d/1", fps_n,
1071 if (gst_util_fraction_compare (fps_n, fps_d, 1000, 1) > 0) {
1072 GST_LOG_OBJECT (ffmpegdec, "excessive framerate: %d/%d, -> 0/1", fps_n,
1079 GST_LOG_OBJECT (ffmpegdec, "setting framerate: %d/%d", fps_n, fps_d);
1080 out_info->fps_n = fps_n;
1081 out_info->fps_d = fps_d;
1083 /* calculate and update par now */
1084 gst_ffmpegviddec_update_par (ffmpegdec, in_info, out_info);
1086 /* Copy stereo/multiview info from upstream if set */
1087 if (GST_VIDEO_INFO_MULTIVIEW_MODE (in_info) != GST_VIDEO_MULTIVIEW_MODE_NONE) {
1088 GST_VIDEO_INFO_MULTIVIEW_MODE (out_info) =
1089 GST_VIDEO_INFO_MULTIVIEW_MODE (in_info);
1090 GST_VIDEO_INFO_MULTIVIEW_FLAGS (out_info) =
1091 GST_VIDEO_INFO_MULTIVIEW_FLAGS (in_info);
1094 if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (ffmpegdec)))
1095 goto negotiate_failed;
1097 /* The decoder is configured, we now know the true latency */
1100 gst_util_uint64_scale_ceil (ffmpegdec->context->has_b_frames *
1101 GST_SECOND, fps_d, fps_n);
1102 gst_video_decoder_set_latency (GST_VIDEO_DECODER (ffmpegdec), latency,
1111 GST_ERROR_OBJECT (ffmpegdec,
1112 "decoder requires a video format unsupported by GStreamer");
1117 /* Reset so we try again next time even if force==FALSE */
1118 ffmpegdec->pic_pix_fmt = 0;
1119 ffmpegdec->pic_width = 0;
1120 ffmpegdec->pic_height = 0;
1121 ffmpegdec->pic_par_n = 0;
1122 ffmpegdec->pic_par_d = 0;
1123 ffmpegdec->ctx_ticks = 0;
1124 ffmpegdec->ctx_time_n = 0;
1125 ffmpegdec->ctx_time_d = 0;
1127 GST_ERROR_OBJECT (ffmpegdec, "negotiation failed");
1132 /* perform qos calculations before decoding the next frame.
1134 * Sets the skip_frame flag and if things are really bad, skips to the next
1139 gst_ffmpegviddec_do_qos (GstFFMpegVidDec * ffmpegdec,
1140 GstVideoCodecFrame * frame, gboolean * mode_switch)
1142 GstClockTimeDiff diff;
1143 GstSegmentFlags skip_flags =
1144 GST_VIDEO_DECODER_INPUT_SEGMENT (ffmpegdec).flags;
1146 *mode_switch = FALSE;
1151 if (skip_flags & GST_SEGMENT_FLAG_TRICKMODE_KEY_UNITS) {
1152 ffmpegdec->context->skip_frame = AVDISCARD_NONKEY;
1153 *mode_switch = TRUE;
1154 } else if (skip_flags & GST_SEGMENT_FLAG_TRICKMODE) {
1155 ffmpegdec->context->skip_frame = AVDISCARD_NONREF;
1156 *mode_switch = TRUE;
1159 if (*mode_switch == TRUE) {
1160 /* We've already switched mode, we can return straight away
1161 * without any further calculation */
1166 gst_video_decoder_get_max_decode_time (GST_VIDEO_DECODER (ffmpegdec),
1169 /* if we don't have timing info, then we don't do QoS */
1170 if (G_UNLIKELY (diff == G_MAXINT64)) {
1171 /* Ensure the skipping strategy is the default one */
1172 ffmpegdec->context->skip_frame = ffmpegdec->skip_frame;
1176 GST_DEBUG_OBJECT (ffmpegdec, "decoding time %" G_GINT64_FORMAT, diff);
1178 if (diff > 0 && ffmpegdec->context->skip_frame != AVDISCARD_DEFAULT) {
1179 ffmpegdec->context->skip_frame = AVDISCARD_DEFAULT;
1180 *mode_switch = TRUE;
1181 GST_DEBUG_OBJECT (ffmpegdec, "QOS: normal mode");
1184 else if (diff <= 0 && ffmpegdec->context->skip_frame != AVDISCARD_NONREF) {
1185 ffmpegdec->context->skip_frame = AVDISCARD_NONREF;
1186 *mode_switch = TRUE;
1187 GST_DEBUG_OBJECT (ffmpegdec,
1188 "QOS: hurry up, diff %" G_GINT64_FORMAT " >= 0", diff);
1192 /* get an outbuf buffer with the current picture */
1193 static GstFlowReturn
1194 get_output_buffer (GstFFMpegVidDec * ffmpegdec, GstVideoCodecFrame * frame)
1196 GstFlowReturn ret = GST_FLOW_OK;
1197 AVFrame pic, *outpic;
1198 GstVideoFrame vframe;
1202 GST_LOG_OBJECT (ffmpegdec, "get output buffer");
1204 if (!ffmpegdec->output_state)
1205 goto not_negotiated;
1208 gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (ffmpegdec),
1210 if (G_UNLIKELY (ret != GST_FLOW_OK))
1213 /* original ffmpeg code does not handle odd sizes correctly.
1214 * This patched up version does */
1215 /* Fill avpicture */
1216 info = &ffmpegdec->output_state->info;
1217 if (!gst_video_frame_map (&vframe, info, frame->output_buffer,
1218 GST_MAP_READ | GST_MAP_WRITE))
1221 memset (&pic, 0, sizeof (pic));
1222 pic.format = ffmpegdec->pic_pix_fmt;
1223 pic.width = GST_VIDEO_FRAME_WIDTH (&vframe);
1224 pic.height = GST_VIDEO_FRAME_HEIGHT (&vframe);
1225 for (c = 0; c < AV_NUM_DATA_POINTERS; c++) {
1226 if (c < GST_VIDEO_INFO_N_PLANES (info)) {
1227 pic.data[c] = GST_VIDEO_FRAME_PLANE_DATA (&vframe, c);
1228 pic.linesize[c] = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, c);
1229 GST_LOG_OBJECT (ffmpegdec, "[%i] linesize %d, data %p", c,
1230 pic.linesize[c], pic.data[c]);
1233 pic.linesize[c] = 0;
1237 outpic = ffmpegdec->picture;
1239 if (av_frame_copy (&pic, outpic) != 0) {
1240 GST_ERROR_OBJECT (ffmpegdec, "Failed to copy output frame");
1241 ret = GST_FLOW_ERROR;
1244 gst_video_frame_unmap (&vframe);
1246 ffmpegdec->picture->reordered_opaque = -1;
1253 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, FAILED,
1254 ("Unable to allocate memory"),
1255 ("The downstream pool failed to allocated buffer."));
1260 GST_ELEMENT_ERROR (ffmpegdec, RESOURCE, OPEN_READ_WRITE,
1261 ("Cannot access memory for read and write operation."),
1262 ("The video memory allocated from downstream pool could not mapped for"
1263 "read and write."));
1268 GST_DEBUG_OBJECT (ffmpegdec, "not negotiated");
1269 return GST_FLOW_NOT_NEGOTIATED;
1274 gst_avpacket_init (AVPacket * packet, guint8 * data, guint size)
1276 memset (packet, 0, sizeof (AVPacket));
1277 packet->data = data;
1278 packet->size = size;
1281 /* gst_ffmpegviddec_[video|audio]_frame:
1283 * data: pointer to the data to decode
1284 * size: size of data in bytes
1285 * in_timestamp: incoming timestamp.
1286 * in_duration: incoming duration.
1287 * in_offset: incoming offset (frame number).
1290 * Returns: number of bytes used in decoding. The check for successful decode is
1291 * outbuf being non-NULL.
1294 gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
1295 guint8 * data, guint size, gint * have_data, GstVideoCodecFrame * frame,
1296 GstFlowReturn * ret)
1299 gboolean mode_switch;
1300 GstVideoCodecFrame *out_frame;
1301 GstFFMpegVidDecVideoFrame *out_dframe;
1303 GstBufferPool *pool;
1307 /* in case we skip frames */
1308 ffmpegdec->picture->pict_type = -1;
1310 /* run QoS code, we don't stop decoding the frame when we are late because
1311 * else we might skip a reference frame */
1312 gst_ffmpegviddec_do_qos (ffmpegdec, frame, &mode_switch);
1315 /* save reference to the timing info */
1316 ffmpegdec->context->reordered_opaque = (gint64) frame->system_frame_number;
1317 ffmpegdec->picture->reordered_opaque = (gint64) frame->system_frame_number;
1319 GST_DEBUG_OBJECT (ffmpegdec, "stored opaque values idx %d",
1320 frame->system_frame_number);
1323 /* now decode the frame */
1324 gst_avpacket_init (&packet, data, size);
1326 if (ffmpegdec->palette) {
1329 pal = av_packet_new_side_data (&packet, AV_PKT_DATA_PALETTE,
1331 gst_buffer_extract (ffmpegdec->palette, 0, pal, AVPALETTE_SIZE);
1332 GST_DEBUG_OBJECT (ffmpegdec, "copy pal %p %p", &packet, pal);
1335 /* This might call into get_buffer() from another thread,
1336 * which would cause a deadlock. Release the lock here
1337 * and taking it again later seems safe
1338 * See https://bugzilla.gnome.org/show_bug.cgi?id=726020
1340 GST_VIDEO_DECODER_STREAM_UNLOCK (ffmpegdec);
1341 len = avcodec_decode_video2 (ffmpegdec->context,
1342 ffmpegdec->picture, have_data, &packet);
1343 GST_VIDEO_DECODER_STREAM_LOCK (ffmpegdec);
1345 GST_DEBUG_OBJECT (ffmpegdec, "after decode: len %d, have_data %d",
1348 /* when we are in skip_frame mode, don't complain when ffmpeg returned
1349 * no data because we told it to skip stuff. */
1350 if (len < 0 && (mode_switch || ffmpegdec->context->skip_frame))
1353 /* no data, we're done */
1354 if (len < 0 || *have_data == 0)
1357 /* get the output picture timing info again */
1358 out_dframe = ffmpegdec->picture->opaque;
1359 out_frame = gst_video_codec_frame_ref (out_dframe->frame);
1361 /* also give back a buffer allocated by the frame, if any */
1362 gst_buffer_replace (&out_frame->output_buffer, out_dframe->buffer);
1363 gst_buffer_replace (&out_dframe->buffer, NULL);
1365 GST_DEBUG_OBJECT (ffmpegdec,
1366 "pts %" G_GUINT64_FORMAT " duration %" G_GUINT64_FORMAT,
1367 out_frame->pts, out_frame->duration);
1368 GST_DEBUG_OBJECT (ffmpegdec, "picture: pts %" G_GUINT64_FORMAT,
1369 (guint64) ffmpegdec->picture->pts);
1370 GST_DEBUG_OBJECT (ffmpegdec, "picture: num %d",
1371 ffmpegdec->picture->coded_picture_number);
1372 GST_DEBUG_OBJECT (ffmpegdec, "picture: display %d",
1373 ffmpegdec->picture->display_picture_number);
1374 GST_DEBUG_OBJECT (ffmpegdec, "picture: opaque %p",
1375 ffmpegdec->picture->opaque);
1376 GST_DEBUG_OBJECT (ffmpegdec, "picture: reordered opaque %" G_GUINT64_FORMAT,
1377 (guint64) ffmpegdec->picture->reordered_opaque);
1378 GST_DEBUG_OBJECT (ffmpegdec, "repeat_pict:%d",
1379 ffmpegdec->picture->repeat_pict);
1380 GST_DEBUG_OBJECT (ffmpegdec, "corrupted frame: %d",
1381 ! !(ffmpegdec->picture->flags & AV_FRAME_FLAG_CORRUPT));
1383 if (!gst_ffmpegviddec_negotiate (ffmpegdec, ffmpegdec->context,
1384 ffmpegdec->picture))
1385 goto negotiation_error;
1387 pool = gst_video_decoder_get_buffer_pool (GST_VIDEO_DECODER (ffmpegdec));
1388 if (G_UNLIKELY (out_frame->output_buffer == NULL)) {
1389 *ret = get_output_buffer (ffmpegdec, out_frame);
1390 } else if (G_UNLIKELY (out_frame->output_buffer->pool != pool)) {
1391 GstBuffer *tmp = out_frame->output_buffer;
1392 out_frame->output_buffer = NULL;
1393 *ret = get_output_buffer (ffmpegdec, out_frame);
1394 gst_buffer_unref (tmp);
1396 #ifndef G_DISABLE_ASSERT
1398 GstVideoMeta *vmeta = gst_buffer_get_video_meta (out_frame->output_buffer);
1400 GstVideoInfo *info = &ffmpegdec->output_state->info;
1401 g_assert (vmeta->width == GST_VIDEO_INFO_WIDTH (info));
1402 g_assert (vmeta->height == GST_VIDEO_INFO_HEIGHT (info));
1406 gst_object_unref (pool);
1408 if (G_UNLIKELY (*ret != GST_FLOW_OK))
1411 /* Mark corrupted frames as corrupted */
1412 if (ffmpegdec->picture->flags & AV_FRAME_FLAG_CORRUPT)
1413 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_BUFFER_FLAG_CORRUPTED);
1415 if (ffmpegdec->pic_interlaced) {
1416 /* set interlaced flags */
1417 if (ffmpegdec->picture->repeat_pict)
1418 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_VIDEO_BUFFER_FLAG_RFF);
1419 if (ffmpegdec->picture->top_field_first)
1420 GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_VIDEO_BUFFER_FLAG_TFF);
1421 if (ffmpegdec->picture->interlaced_frame)
1422 GST_BUFFER_FLAG_SET (out_frame->output_buffer,
1423 GST_VIDEO_BUFFER_FLAG_INTERLACED);
1427 /* so we decoded this frame, frames preceding it in decoding order
1428 * that still do not have a buffer allocated seem rather useless,
1429 * and can be discarded, due to e.g. misparsed bogus frame
1430 * or non-keyframe in skipped decoding, ...
1431 * In any case, not likely to be seen again, so discard those,
1432 * before they pile up and/or mess with timestamping */
1435 GstVideoDecoder *dec = GST_VIDEO_DECODER (ffmpegdec);
1436 gboolean old = TRUE;
1438 ol = l = gst_video_decoder_get_frames (dec);
1440 GstVideoCodecFrame *tmp = l->data;
1445 if (old && GST_VIDEO_CODEC_FRAME_IS_DECODE_ONLY (tmp)) {
1446 GST_LOG_OBJECT (dec,
1447 "discarding ghost frame %p (#%d) PTS:%" GST_TIME_FORMAT " DTS:%"
1448 GST_TIME_FORMAT, tmp, tmp->system_frame_number,
1449 GST_TIME_ARGS (tmp->pts), GST_TIME_ARGS (tmp->dts));
1450 /* drop extra ref and remove from frame list */
1451 gst_video_decoder_release_frame (dec, tmp);
1453 /* drop extra ref we got */
1454 gst_video_codec_frame_unref (tmp);
1461 av_frame_unref (ffmpegdec->picture);
1463 /* FIXME: Ideally we would remap the buffer read-only now before pushing but
1464 * libav might still have a reference to it!
1467 gst_video_decoder_finish_frame (GST_VIDEO_DECODER (ffmpegdec), out_frame);
1470 GST_DEBUG_OBJECT (ffmpegdec, "return flow %s, len %d",
1471 gst_flow_get_name (*ret), len);
1477 GST_DEBUG_OBJECT (ffmpegdec, "no output buffer");
1478 gst_video_decoder_drop_frame (GST_VIDEO_DECODER (ffmpegdec), out_frame);
1485 if (GST_PAD_IS_FLUSHING (GST_VIDEO_DECODER_SRC_PAD (ffmpegdec))) {
1486 *ret = GST_FLOW_FLUSHING;
1489 GST_WARNING_OBJECT (ffmpegdec, "Error negotiating format");
1490 *ret = GST_FLOW_NOT_NEGOTIATED;
1496 /* gst_ffmpegviddec_frame:
1498 * data: pointer to the data to decode
1499 * size: size of data in bytes
1500 * got_data: 0 if no data was decoded, != 0 otherwise.
1501 * in_time: timestamp of data
1502 * in_duration: duration of data
1503 * ret: GstFlowReturn to return in the chain function
1505 * Decode the given frame and pushes it downstream.
1507 * Returns: Number of bytes used in decoding, -1 on error/failure.
1511 gst_ffmpegviddec_frame (GstFFMpegVidDec * ffmpegdec,
1512 guint8 * data, guint size, gint * have_data, GstVideoCodecFrame * frame,
1513 GstFlowReturn * ret)
1515 GstFFMpegVidDecClass *oclass;
1518 if (G_UNLIKELY (ffmpegdec->context->codec == NULL))
1521 GST_LOG_OBJECT (ffmpegdec, "data:%p, size:%d", data, size);
1524 ffmpegdec->context->frame_number++;
1526 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
1529 gst_ffmpegviddec_video_frame (ffmpegdec, data, size, have_data, frame,
1533 GST_WARNING_OBJECT (ffmpegdec,
1534 "avdec_%s: decoding error (len: %d, have_data: %d)",
1535 oclass->in_plugin->name, len, *have_data);
1543 GST_ERROR_OBJECT (ffmpegdec, "no codec context");
1544 *ret = GST_FLOW_NOT_NEGOTIATED;
1549 static GstFlowReturn
1550 gst_ffmpegviddec_drain (GstVideoDecoder * decoder)
1552 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1553 GstFFMpegVidDecClass *oclass;
1555 if (!ffmpegdec->opened)
1558 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
1560 if (oclass->in_plugin->capabilities & CODEC_CAP_DELAY) {
1561 gint have_data, len;
1564 GST_LOG_OBJECT (ffmpegdec,
1565 "codec has delay capabilities, calling until ffmpeg has drained everything");
1568 len = gst_ffmpegviddec_frame (ffmpegdec, NULL, 0, &have_data, NULL, &ret);
1569 } while (len >= 0 && have_data == 1 && ret == GST_FLOW_OK);
1575 static GstFlowReturn
1576 gst_ffmpegviddec_handle_frame (GstVideoDecoder * decoder,
1577 GstVideoCodecFrame * frame)
1579 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1580 guint8 *data, *bdata;
1581 gint size, len, have_data, bsize;
1583 GstFlowReturn ret = GST_FLOW_OK;
1584 gboolean do_padding;
1586 GST_LOG_OBJECT (ffmpegdec,
1587 "Received new data of size %" G_GSIZE_FORMAT ", dts %" GST_TIME_FORMAT
1588 ", pts:%" GST_TIME_FORMAT ", dur:%" GST_TIME_FORMAT,
1589 gst_buffer_get_size (frame->input_buffer), GST_TIME_ARGS (frame->dts),
1590 GST_TIME_ARGS (frame->pts), GST_TIME_ARGS (frame->duration));
1592 if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
1593 GST_ELEMENT_ERROR (ffmpegdec, STREAM, DECODE, ("Decoding problem"),
1594 ("Failed to map buffer for reading"));
1595 return GST_FLOW_ERROR;
1598 /* treat frame as void until a buffer is requested for it */
1599 GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
1600 GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
1605 if (bsize > 0 && (!GST_MEMORY_IS_ZERO_PADDED (minfo.memory)
1606 || (minfo.maxsize - minfo.size) < FF_INPUT_BUFFER_PADDING_SIZE)) {
1608 if (ffmpegdec->padded_size < bsize + FF_INPUT_BUFFER_PADDING_SIZE) {
1609 ffmpegdec->padded_size = bsize + FF_INPUT_BUFFER_PADDING_SIZE;
1610 ffmpegdec->padded = g_realloc (ffmpegdec->padded, ffmpegdec->padded_size);
1611 GST_LOG_OBJECT (ffmpegdec, "resized padding buffer to %d",
1612 ffmpegdec->padded_size);
1614 GST_CAT_TRACE_OBJECT (CAT_PERFORMANCE, ffmpegdec,
1615 "Copy input to add padding");
1616 memcpy (ffmpegdec->padded, bdata, bsize);
1617 memset (ffmpegdec->padded + bsize, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1619 bdata = ffmpegdec->padded;
1626 guint8 tmp_padding[FF_INPUT_BUFFER_PADDING_SIZE];
1628 /* parse, if at all possible */
1633 /* add temporary padding */
1634 GST_CAT_TRACE_OBJECT (CAT_PERFORMANCE, ffmpegdec,
1635 "Add temporary input padding");
1636 memcpy (tmp_padding, data + size, FF_INPUT_BUFFER_PADDING_SIZE);
1637 memset (data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
1640 /* decode a frame of audio/video now */
1642 gst_ffmpegviddec_frame (ffmpegdec, data, size, &have_data, frame, &ret);
1644 if (ret != GST_FLOW_OK) {
1645 GST_LOG_OBJECT (ffmpegdec, "breaking because of flow ret %s",
1646 gst_flow_get_name (ret));
1647 /* bad flow return, make sure we discard all data and exit */
1653 memcpy (data + size, tmp_padding, FF_INPUT_BUFFER_PADDING_SIZE);
1656 if (len == 0 && have_data == 0) {
1657 /* nothing was decoded, this could be because no data was available or
1658 * because we were skipping frames.
1659 * If we have no context we must exit and wait for more data, we keep the
1661 GST_LOG_OBJECT (ffmpegdec, "Decoding didn't return any data, breaking");
1666 /* a decoding error happened, we must break and try again with next data. */
1667 GST_LOG_OBJECT (ffmpegdec, "Decoding error, breaking");
1672 /* prepare for the next round, for codecs with a context we did this
1673 * already when using the parser. */
1679 GST_LOG_OBJECT (ffmpegdec, "Before (while bsize>0). bsize:%d , bdata:%p",
1681 } while (bsize > 0);
1684 GST_DEBUG_OBJECT (ffmpegdec, "Dropping %d bytes of data", bsize);
1686 gst_buffer_unmap (frame->input_buffer, &minfo);
1687 gst_video_codec_frame_unref (frame);
1693 gst_ffmpegviddec_start (GstVideoDecoder * decoder)
1695 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1696 GstFFMpegVidDecClass *oclass;
1698 oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
1700 GST_OBJECT_LOCK (ffmpegdec);
1701 gst_ffmpeg_avcodec_close (ffmpegdec->context);
1702 if (avcodec_get_context_defaults3 (ffmpegdec->context, oclass->in_plugin) < 0) {
1703 GST_DEBUG_OBJECT (ffmpegdec, "Failed to set context defaults");
1704 GST_OBJECT_UNLOCK (ffmpegdec);
1707 ffmpegdec->context->opaque = ffmpegdec;
1708 GST_OBJECT_UNLOCK (ffmpegdec);
1714 gst_ffmpegviddec_stop (GstVideoDecoder * decoder)
1716 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1718 GST_OBJECT_LOCK (ffmpegdec);
1719 gst_ffmpegviddec_close (ffmpegdec, FALSE);
1720 GST_OBJECT_UNLOCK (ffmpegdec);
1721 g_free (ffmpegdec->padded);
1722 ffmpegdec->padded = NULL;
1723 ffmpegdec->padded_size = 0;
1724 if (ffmpegdec->input_state)
1725 gst_video_codec_state_unref (ffmpegdec->input_state);
1726 ffmpegdec->input_state = NULL;
1727 if (ffmpegdec->output_state)
1728 gst_video_codec_state_unref (ffmpegdec->output_state);
1729 ffmpegdec->output_state = NULL;
1731 if (ffmpegdec->internal_pool)
1732 gst_object_unref (ffmpegdec->internal_pool);
1733 ffmpegdec->internal_pool = NULL;
1735 ffmpegdec->pic_pix_fmt = 0;
1736 ffmpegdec->pic_width = 0;
1737 ffmpegdec->pic_height = 0;
1738 ffmpegdec->pic_par_n = 0;
1739 ffmpegdec->pic_par_d = 0;
1740 ffmpegdec->ctx_ticks = 0;
1741 ffmpegdec->ctx_time_n = 0;
1742 ffmpegdec->ctx_time_d = 0;
1744 ffmpegdec->pool_width = 0;
1745 ffmpegdec->pool_height = 0;
1746 ffmpegdec->pool_format = 0;
1751 static GstFlowReturn
1752 gst_ffmpegviddec_finish (GstVideoDecoder * decoder)
1754 gst_ffmpegviddec_drain (decoder);
1755 /* note that finish can and should clean up more drastically,
1756 * but drain is also invoked on e.g. packet loss in GAP handling */
1757 gst_ffmpegviddec_flush (decoder);
1763 gst_ffmpegviddec_flush (GstVideoDecoder * decoder)
1765 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1767 if (ffmpegdec->opened) {
1768 GST_LOG_OBJECT (decoder, "flushing buffers");
1769 avcodec_flush_buffers (ffmpegdec->context);
1776 gst_ffmpegviddec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
1778 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) decoder;
1779 GstVideoCodecState *state;
1780 GstBufferPool *pool;
1781 guint size, min, max;
1782 GstStructure *config;
1783 gboolean have_pool, have_videometa, have_alignment, update_pool = FALSE;
1784 GstAllocator *allocator = NULL;
1785 GstAllocationParams params = DEFAULT_ALLOC_PARAM;
1787 have_pool = (gst_query_get_n_allocation_pools (query) != 0);
1789 if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
1793 state = gst_video_decoder_get_output_state (decoder);
1795 if (gst_query_get_n_allocation_params (query) > 0) {
1796 gst_query_parse_nth_allocation_param (query, 0, &allocator, ¶ms);
1797 params.align = MAX (params.align, DEFAULT_STRIDE_ALIGN);
1799 gst_query_add_allocation_param (query, allocator, ¶ms);
1802 gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
1804 /* Don't use pool that can't grow, as we don't know how many buffer we'll
1805 * need, otherwise we may stall */
1806 if (max != 0 && max < REQUIRED_POOL_MAX_BUFFERS) {
1807 gst_object_unref (pool);
1808 pool = gst_video_buffer_pool_new ();
1813 /* if there is an allocator, also drop it, as it might be the reason we
1814 * have this limit. Default will be used */
1816 gst_object_unref (allocator);
1821 config = gst_buffer_pool_get_config (pool);
1822 gst_buffer_pool_config_set_params (config, state->caps, size, min, max);
1823 gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
1826 gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
1829 gst_buffer_pool_config_add_option (config,
1830 GST_BUFFER_POOL_OPTION_VIDEO_META);
1833 gst_buffer_pool_has_option (pool, GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
1835 /* If we have videometa, we never have to copy */
1836 if (have_videometa && have_pool && have_alignment &&
1837 gst_ffmpegviddec_can_direct_render (ffmpegdec)) {
1838 GstStructure *config_copy = gst_structure_copy (config);
1840 gst_ffmpegvideodec_prepare_dr_pool (ffmpegdec, pool, &state->info,
1843 /* FIXME validate and retry */
1844 if (gst_buffer_pool_set_config (pool, config_copy)) {
1848 gst_buffer_pool_set_active (pool, TRUE);
1849 ret = gst_buffer_pool_acquire_buffer (pool, &tmp, NULL);
1850 if (ret == GST_FLOW_OK) {
1851 GstVideoMeta *vmeta = gst_buffer_get_video_meta (tmp);
1852 gboolean same_stride = TRUE;
1855 for (i = 0; i < vmeta->n_planes; i++) {
1856 if (vmeta->stride[i] != ffmpegdec->stride[i]) {
1857 same_stride = FALSE;
1862 gst_buffer_unref (tmp);
1865 if (ffmpegdec->internal_pool)
1866 gst_object_unref (ffmpegdec->internal_pool);
1867 ffmpegdec->internal_pool = gst_object_ref (pool);
1868 ffmpegdec->pool_info = state->info;
1869 gst_structure_free (config);
1876 if (have_videometa && ffmpegdec->internal_pool
1877 && ffmpegdec->pool_width == state->info.width
1878 && ffmpegdec->pool_height == state->info.height) {
1880 gst_object_unref (pool);
1881 pool = gst_object_ref (ffmpegdec->internal_pool);
1882 gst_structure_free (config);
1887 if (!gst_buffer_pool_set_config (pool, config)) {
1888 gboolean working_pool = FALSE;
1889 config = gst_buffer_pool_get_config (pool);
1891 if (gst_buffer_pool_config_validate_params (config, state->caps, size, min,
1893 working_pool = gst_buffer_pool_set_config (pool, config);
1895 gst_structure_free (config);
1898 if (!working_pool) {
1899 gst_object_unref (pool);
1900 pool = gst_video_buffer_pool_new ();
1901 config = gst_buffer_pool_get_config (pool);
1902 gst_buffer_pool_config_set_params (config, state->caps, size, min, max);
1903 gst_buffer_pool_config_set_allocator (config, NULL, ¶ms);
1904 gst_buffer_pool_set_config (pool, config);
1912 gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
1914 gst_object_unref (pool);
1916 gst_object_unref (allocator);
1917 gst_video_codec_state_unref (state);
1923 gst_ffmpegviddec_propose_allocation (GstVideoDecoder * decoder,
1926 GstAllocationParams params;
1928 gst_allocation_params_init (¶ms);
1929 params.flags = GST_MEMORY_FLAG_ZERO_PADDED;
1930 params.align = DEFAULT_STRIDE_ALIGN;
1931 params.padding = FF_INPUT_BUFFER_PADDING_SIZE;
1932 /* we would like to have some padding so that we don't have to
1933 * memcpy. We don't suggest an allocator. */
1934 gst_query_add_allocation_param (query, NULL, ¶ms);
1936 return GST_VIDEO_DECODER_CLASS (parent_class)->propose_allocation (decoder,
1941 gst_ffmpegviddec_set_property (GObject * object,
1942 guint prop_id, const GValue * value, GParamSpec * pspec)
1944 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) object;
1948 ffmpegdec->lowres = ffmpegdec->context->lowres = g_value_get_enum (value);
1950 case PROP_SKIPFRAME:
1951 ffmpegdec->skip_frame = ffmpegdec->context->skip_frame =
1952 g_value_get_enum (value);
1954 case PROP_DIRECT_RENDERING:
1955 ffmpegdec->direct_rendering = g_value_get_boolean (value);
1958 ffmpegdec->debug_mv = ffmpegdec->context->debug_mv =
1959 g_value_get_boolean (value);
1961 case PROP_MAX_THREADS:
1962 ffmpegdec->max_threads = g_value_get_int (value);
1964 case PROP_OUTPUT_CORRUPT:
1965 ffmpegdec->output_corrupt = g_value_get_boolean (value);
1968 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1974 gst_ffmpegviddec_get_property (GObject * object,
1975 guint prop_id, GValue * value, GParamSpec * pspec)
1977 GstFFMpegVidDec *ffmpegdec = (GstFFMpegVidDec *) object;
1981 g_value_set_enum (value, ffmpegdec->context->lowres);
1983 case PROP_SKIPFRAME:
1984 g_value_set_enum (value, ffmpegdec->context->skip_frame);
1986 case PROP_DIRECT_RENDERING:
1987 g_value_set_boolean (value, ffmpegdec->direct_rendering);
1990 g_value_set_boolean (value, ffmpegdec->context->debug_mv);
1992 case PROP_MAX_THREADS:
1993 g_value_set_int (value, ffmpegdec->max_threads);
1995 case PROP_OUTPUT_CORRUPT:
1996 g_value_set_boolean (value, ffmpegdec->output_corrupt);
1999 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2005 gst_ffmpegviddec_register (GstPlugin * plugin)
2007 GTypeInfo typeinfo = {
2008 sizeof (GstFFMpegVidDecClass),
2009 (GBaseInitFunc) gst_ffmpegviddec_base_init,
2011 (GClassInitFunc) gst_ffmpegviddec_class_init,
2014 sizeof (GstFFMpegVidDec),
2016 (GInstanceInitFunc) gst_ffmpegviddec_init,
2022 in_plugin = av_codec_next (NULL);
2024 GST_LOG ("Registering decoders");
2030 /* only video decoders */
2031 if (!av_codec_is_decoder (in_plugin)
2032 || in_plugin->type != AVMEDIA_TYPE_VIDEO)
2035 /* no quasi codecs, please */
2036 if (in_plugin->id == AV_CODEC_ID_RAWVIDEO ||
2037 in_plugin->id == AV_CODEC_ID_V210 ||
2038 in_plugin->id == AV_CODEC_ID_V210X ||
2039 in_plugin->id == AV_CODEC_ID_V308 ||
2040 in_plugin->id == AV_CODEC_ID_V408 ||
2041 in_plugin->id == AV_CODEC_ID_V410 ||
2042 in_plugin->id == AV_CODEC_ID_R210
2043 || in_plugin->id == AV_CODEC_ID_AYUV
2044 || in_plugin->id == AV_CODEC_ID_Y41P
2045 || in_plugin->id == AV_CODEC_ID_012V
2046 || in_plugin->id == AV_CODEC_ID_YUV4
2047 || in_plugin->id == AV_CODEC_ID_ZLIB
2048 || in_plugin->id == AV_CODEC_ID_WRAPPED_AVFRAME) {
2052 /* No decoders depending on external libraries (we don't build them, but
2053 * people who build against an external ffmpeg might have them.
2054 * We have native gstreamer plugins for all of those libraries anyway. */
2055 if (!strncmp (in_plugin->name, "lib", 3)) {
2057 ("Not using external library decoder %s. Use the gstreamer-native ones instead.",
2062 /* No vdpau plugins until we can figure out how to properly use them
2063 * outside of ffmpeg. */
2064 if (g_str_has_suffix (in_plugin->name, "_vdpau")) {
2066 ("Ignoring VDPAU decoder %s. We can't handle this outside of ffmpeg",
2071 if (g_str_has_suffix (in_plugin->name, "_xvmc")) {
2073 ("Ignoring XVMC decoder %s. We can't handle this outside of ffmpeg",
2078 if (strstr (in_plugin->name, "vaapi")) {
2080 ("Ignoring VAAPI decoder %s. We can't handle this outside of ffmpeg",
2085 GST_DEBUG ("Trying plugin %s [%s]", in_plugin->name, in_plugin->long_name);
2087 /* no codecs for which we're GUARANTEED to have better alternatives */
2088 /* MPEG1VIDEO : the mpeg2video decoder is preferred */
2089 /* MP1 : Use MP3 for decoding */
2090 /* MP2 : Use MP3 for decoding */
2091 /* Theora: Use libtheora based theoradec */
2092 if (!strcmp (in_plugin->name, "gif") ||
2093 !strcmp (in_plugin->name, "theora") ||
2094 !strcmp (in_plugin->name, "mpeg1video") ||
2095 strstr (in_plugin->name, "crystalhd") != NULL ||
2096 !strcmp (in_plugin->name, "ass") ||
2097 !strcmp (in_plugin->name, "srt") ||
2098 !strcmp (in_plugin->name, "pgssub") ||
2099 !strcmp (in_plugin->name, "dvdsub") ||
2100 !strcmp (in_plugin->name, "dvbsub")) {
2101 GST_LOG ("Ignoring decoder %s", in_plugin->name);
2105 /* construct the type */
2106 if (!strcmp (in_plugin->name, "hevc")) {
2107 plugin_name = g_strdup ("h265");
2109 plugin_name = g_strdup ((gchar *) in_plugin->name);
2111 g_strdelimit (plugin_name, NULL, '_');
2112 type_name = g_strdup_printf ("avdec_%s", plugin_name);
2113 g_free (plugin_name);
2115 type = g_type_from_name (type_name);
2118 /* create the gtype now */
2120 g_type_register_static (GST_TYPE_VIDEO_DECODER, type_name, &typeinfo,
2122 g_type_set_qdata (type, GST_FFDEC_PARAMS_QDATA, (gpointer) in_plugin);
2125 /* (Ronald) MPEG-4 gets a higher priority because it has been well-
2126 * tested and by far outperforms divxdec/xviddec - so we prefer it.
2127 * msmpeg4v3 same, as it outperforms divxdec for divx3 playback.
2128 * VC1/WMV3 are not working and thus unpreferred for now. */
2129 switch (in_plugin->id) {
2130 case AV_CODEC_ID_MPEG1VIDEO:
2131 case AV_CODEC_ID_MPEG2VIDEO:
2132 case AV_CODEC_ID_MPEG4:
2133 case AV_CODEC_ID_MSMPEG4V3:
2134 case AV_CODEC_ID_H264:
2135 case AV_CODEC_ID_HEVC:
2136 case AV_CODEC_ID_RV10:
2137 case AV_CODEC_ID_RV20:
2138 case AV_CODEC_ID_RV30:
2139 case AV_CODEC_ID_RV40:
2140 rank = GST_RANK_PRIMARY;
2142 /* DVVIDEO: we have a good dv decoder, fast on both ppc as well as x86.
2143 * They say libdv's quality is better though. leave as secondary.
2144 * note: if you change this, see the code in gstdv.c in good/ext/dv.
2146 case AV_CODEC_ID_DVVIDEO:
2147 rank = GST_RANK_SECONDARY;
2150 rank = GST_RANK_MARGINAL;
2153 if (!gst_element_register (plugin, type_name, rank, type)) {
2154 g_warning ("Failed to register %s", type_name);
2162 in_plugin = av_codec_next (in_plugin);
2165 GST_LOG ("Finished Registering decoders");