mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-18 15:51:11 +00:00
avviddec: Negotiate based on the AVFrame information, not the context information
The context contains the information from the latest input frame, we're however interested in the information from the latest output frame. As we have to negotiate for the buffer that is about to come next. This should fix some crashes that happened when both information got out of sync. If that happens now, we will do fallback allocation until the output is renegotiated too. https://bugzilla.gnome.org/show_bug.cgi?id=750865
This commit is contained in:
Sebastian Dröge
parent
ee8d33c468
commit
5b6c8ee8c9
2 changed files with 87 additions and 59 deletions
|
|
@ -85,7 +85,7 @@ static void gst_ffmpegviddec_get_property (GObject * object,
|
|||
guint prop_id, GValue * value, GParamSpec * pspec);
|
||||
|
||||
static gboolean gst_ffmpegviddec_negotiate (GstFFMpegVidDec * ffmpegdec,
|
||||
AVCodecContext * context, gboolean force);
|
||||
AVCodecContext * context, AVFrame * picture, gboolean force);
|
||||
|
||||
/* some sort of bufferpool handling, but different */
|
||||
static int gst_ffmpegviddec_get_buffer (AVCodecContext * context,
|
||||
|
|
@ -98,6 +98,11 @@ static void gst_ffmpegviddec_release_buffer (AVCodecContext * context,
|
|||
static GstFlowReturn gst_ffmpegviddec_finish (GstVideoDecoder * decoder);
|
||||
static void gst_ffmpegviddec_drain (GstFFMpegVidDec * ffmpegdec);
|
||||
|
||||
static gboolean picture_changed (GstFFMpegVidDec * ffmpegdec,
|
||||
AVFrame * picture);
|
||||
static gboolean context_changed (GstFFMpegVidDec * ffmpegdec,
|
||||
AVCodecContext * context);
|
||||
|
||||
#define GST_FFDEC_PARAMS_QDATA g_quark_from_static_string("avdec-params")
|
||||
|
||||
static GstElementClass *parent_class = NULL;
|
||||
|
|
@ -437,6 +442,14 @@ gst_ffmpegviddec_set_format (GstVideoDecoder * decoder,
|
|||
GST_OBJECT_UNLOCK (ffmpegdec);
|
||||
return FALSE;
|
||||
}
|
||||
ffmpegdec->pic_pix_fmt = 0;
|
||||
ffmpegdec->pic_width = 0;
|
||||
ffmpegdec->pic_height = 0;
|
||||
ffmpegdec->pic_par_n = 0;
|
||||
ffmpegdec->pic_par_d = 0;
|
||||
ffmpegdec->ctx_ticks = 0;
|
||||
ffmpegdec->ctx_time_n = 0;
|
||||
ffmpegdec->ctx_time_d = 0;
|
||||
}
|
||||
|
||||
gst_caps_replace (&ffmpegdec->last_caps, state->caps);
|
||||
|
|
@ -634,10 +647,16 @@ gst_ffmpegviddec_get_buffer (AVCodecContext * context, AVFrame * picture)
|
|||
|
||||
GST_DEBUG_OBJECT (ffmpegdec, "storing opaque %p", dframe);
|
||||
|
||||
ffmpegdec->context->pix_fmt = context->pix_fmt;
|
||||
/* If the picture format changed but we already negotiated before,
|
||||
* we will have to do fallback allocation until output and input
|
||||
* formats are in sync again. We will renegotiate on the output
|
||||
*/
|
||||
if (ffmpegdec->pic_width != 0 && picture_changed (ffmpegdec, picture))
|
||||
goto fallback;
|
||||
|
||||
/* see if we need renegotiation */
|
||||
if (G_UNLIKELY (!gst_ffmpegviddec_negotiate (ffmpegdec, context, FALSE)))
|
||||
if (G_UNLIKELY (!gst_ffmpegviddec_negotiate (ffmpegdec, context, picture,
|
||||
FALSE)))
|
||||
goto negotiate_failed;
|
||||
|
||||
if (!ffmpegdec->current_dr)
|
||||
|
|
@ -846,37 +865,52 @@ gst_ffmpegviddec_release_buffer (AVCodecContext * context, AVFrame * picture)
|
|||
}
|
||||
|
||||
static gboolean
|
||||
update_video_context (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context,
|
||||
gboolean force)
|
||||
picture_changed (GstFFMpegVidDec * ffmpegdec, AVFrame * picture)
|
||||
{
|
||||
if (!force && ffmpegdec->ctx_width == context->width
|
||||
&& ffmpegdec->ctx_height == context->height
|
||||
&& ffmpegdec->ctx_ticks == context->ticks_per_frame
|
||||
return !(ffmpegdec->pic_width == picture->width
|
||||
&& ffmpegdec->pic_height == picture->height
|
||||
&& ffmpegdec->pic_pix_fmt == picture->format
|
||||
&& ffmpegdec->pic_par_n == picture->sample_aspect_ratio.num
|
||||
&& ffmpegdec->pic_par_d == picture->sample_aspect_ratio.den
|
||||
&& ffmpegdec->pic_interlaced == picture->interlaced_frame);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
context_changed (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context)
|
||||
{
|
||||
return !(ffmpegdec->ctx_ticks == context->ticks_per_frame
|
||||
&& ffmpegdec->ctx_time_n == context->time_base.num
|
||||
&& ffmpegdec->ctx_time_d == context->time_base.den
|
||||
&& ffmpegdec->ctx_pix_fmt == context->pix_fmt
|
||||
&& ffmpegdec->ctx_par_n == context->sample_aspect_ratio.num
|
||||
&& ffmpegdec->ctx_par_d == context->sample_aspect_ratio.den)
|
||||
&& ffmpegdec->ctx_time_d == context->time_base.den);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
update_video_context (GstFFMpegVidDec * ffmpegdec, AVCodecContext * context,
|
||||
AVFrame * picture, gboolean force)
|
||||
{
|
||||
if (!force && !picture_changed (ffmpegdec, picture)
|
||||
&& !context_changed (ffmpegdec, context))
|
||||
return FALSE;
|
||||
|
||||
GST_DEBUG_OBJECT (ffmpegdec,
|
||||
"Renegotiating video from %dx%d@ %d:%d PAR %d/%d fps to %dx%d@ %d:%d PAR %d/%d fps pixfmt %d",
|
||||
ffmpegdec->ctx_width, ffmpegdec->ctx_height,
|
||||
ffmpegdec->ctx_par_n, ffmpegdec->ctx_par_d,
|
||||
"Renegotiating video from %dx%d@ %d:%d PAR %d/%d fps pixfmt %d to %dx%d@ %d:%d PAR %d/%d fps pixfmt %d",
|
||||
ffmpegdec->pic_width, ffmpegdec->pic_height,
|
||||
ffmpegdec->pic_par_n, ffmpegdec->pic_par_d,
|
||||
ffmpegdec->ctx_time_n, ffmpegdec->ctx_time_d,
|
||||
context->width, context->height,
|
||||
context->sample_aspect_ratio.num,
|
||||
context->sample_aspect_ratio.den,
|
||||
context->time_base.num, context->time_base.den, context->pix_fmt);
|
||||
ffmpegdec->pic_pix_fmt,
|
||||
picture->width, picture->height,
|
||||
picture->sample_aspect_ratio.num,
|
||||
picture->sample_aspect_ratio.den,
|
||||
context->time_base.num, context->time_base.den, picture->format);
|
||||
|
||||
ffmpegdec->ctx_width = context->width;
|
||||
ffmpegdec->ctx_height = context->height;
|
||||
ffmpegdec->pic_pix_fmt = picture->format;
|
||||
ffmpegdec->pic_width = picture->width;
|
||||
ffmpegdec->pic_height = picture->height;
|
||||
ffmpegdec->pic_par_n = picture->sample_aspect_ratio.num;
|
||||
ffmpegdec->pic_par_d = picture->sample_aspect_ratio.den;
|
||||
ffmpegdec->pic_interlaced = picture->interlaced_frame;
|
||||
ffmpegdec->ctx_ticks = context->ticks_per_frame;
|
||||
ffmpegdec->ctx_time_n = context->time_base.num;
|
||||
ffmpegdec->ctx_time_d = context->time_base.den;
|
||||
ffmpegdec->ctx_pix_fmt = context->pix_fmt;
|
||||
ffmpegdec->ctx_par_n = context->sample_aspect_ratio.num;
|
||||
ffmpegdec->ctx_par_d = context->sample_aspect_ratio.den;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
@ -898,9 +932,9 @@ gst_ffmpegviddec_update_par (GstFFMpegVidDec * ffmpegdec,
|
|||
demuxer_denom);
|
||||
}
|
||||
|
||||
if (ffmpegdec->ctx_par_n && ffmpegdec->ctx_par_d) {
|
||||
decoder_num = ffmpegdec->ctx_par_n;
|
||||
decoder_denom = ffmpegdec->ctx_par_d;
|
||||
if (ffmpegdec->pic_par_n && ffmpegdec->pic_par_d) {
|
||||
decoder_num = ffmpegdec->pic_par_n;
|
||||
decoder_denom = ffmpegdec->pic_par_d;
|
||||
decoder_par_set = TRUE;
|
||||
GST_DEBUG_OBJECT (ffmpegdec, "Decoder PAR: %d:%d", decoder_num,
|
||||
decoder_denom);
|
||||
|
|
@ -957,23 +991,23 @@ no_par:
|
|||
|
||||
static gboolean
|
||||
gst_ffmpegviddec_negotiate (GstFFMpegVidDec * ffmpegdec,
|
||||
AVCodecContext * context, gboolean force)
|
||||
AVCodecContext * context, AVFrame * picture, gboolean force)
|
||||
{
|
||||
GstVideoFormat fmt;
|
||||
GstVideoInfo *in_info, *out_info;
|
||||
GstVideoCodecState *output_state;
|
||||
gint fps_n, fps_d;
|
||||
|
||||
if (!update_video_context (ffmpegdec, context, force))
|
||||
if (!update_video_context (ffmpegdec, context, picture, force))
|
||||
return TRUE;
|
||||
|
||||
fmt = gst_ffmpeg_pixfmt_to_videoformat (ffmpegdec->ctx_pix_fmt);
|
||||
fmt = gst_ffmpeg_pixfmt_to_videoformat (ffmpegdec->pic_pix_fmt);
|
||||
if (G_UNLIKELY (fmt == GST_VIDEO_FORMAT_UNKNOWN))
|
||||
goto unknown_format;
|
||||
|
||||
output_state =
|
||||
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (ffmpegdec), fmt,
|
||||
ffmpegdec->ctx_width, ffmpegdec->ctx_height, ffmpegdec->input_state);
|
||||
ffmpegdec->pic_width, ffmpegdec->pic_height, ffmpegdec->input_state);
|
||||
if (ffmpegdec->output_state)
|
||||
gst_video_codec_state_unref (ffmpegdec->output_state);
|
||||
ffmpegdec->output_state = output_state;
|
||||
|
|
@ -982,7 +1016,7 @@ gst_ffmpegviddec_negotiate (GstFFMpegVidDec * ffmpegdec,
|
|||
out_info = &ffmpegdec->output_state->info;
|
||||
|
||||
/* set the interlaced flag */
|
||||
if (ffmpegdec->ctx_interlaced)
|
||||
if (ffmpegdec->pic_interlaced)
|
||||
out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED;
|
||||
else
|
||||
out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
|
||||
|
|
@ -1057,14 +1091,14 @@ unknown_format:
|
|||
negotiate_failed:
|
||||
{
|
||||
/* Reset so we try again next time even if force==FALSE */
|
||||
ffmpegdec->ctx_width = 0;
|
||||
ffmpegdec->ctx_height = 0;
|
||||
ffmpegdec->pic_pix_fmt = 0;
|
||||
ffmpegdec->pic_width = 0;
|
||||
ffmpegdec->pic_height = 0;
|
||||
ffmpegdec->pic_par_n = 0;
|
||||
ffmpegdec->pic_par_d = 0;
|
||||
ffmpegdec->ctx_ticks = 0;
|
||||
ffmpegdec->ctx_time_n = 0;
|
||||
ffmpegdec->ctx_time_d = 0;
|
||||
ffmpegdec->ctx_pix_fmt = 0;
|
||||
ffmpegdec->ctx_par_n = 0;
|
||||
ffmpegdec->ctx_par_d = 0;
|
||||
|
||||
GST_ERROR_OBJECT (ffmpegdec, "negotiation failed");
|
||||
return FALSE;
|
||||
|
|
@ -1315,19 +1349,12 @@ gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
|
|||
(guint64) ffmpegdec->picture->reordered_opaque);
|
||||
GST_DEBUG_OBJECT (ffmpegdec, "repeat_pict:%d",
|
||||
ffmpegdec->picture->repeat_pict);
|
||||
GST_DEBUG_OBJECT (ffmpegdec, "interlaced_frame:%d (current:%d)",
|
||||
ffmpegdec->picture->interlaced_frame, ffmpegdec->ctx_interlaced);
|
||||
GST_DEBUG_OBJECT (ffmpegdec, "corrupted frame: %d",
|
||||
! !(ffmpegdec->picture->flags & AV_FRAME_FLAG_CORRUPT));
|
||||
|
||||
if (G_UNLIKELY (ffmpegdec->picture->interlaced_frame !=
|
||||
ffmpegdec->ctx_interlaced)) {
|
||||
GST_WARNING ("Change in interlacing ! picture:%d, recorded:%d",
|
||||
ffmpegdec->picture->interlaced_frame, ffmpegdec->ctx_interlaced);
|
||||
ffmpegdec->ctx_interlaced = ffmpegdec->picture->interlaced_frame;
|
||||
if (!gst_ffmpegviddec_negotiate (ffmpegdec, ffmpegdec->context, TRUE))
|
||||
goto negotiation_error;
|
||||
}
|
||||
if (!gst_ffmpegviddec_negotiate (ffmpegdec, ffmpegdec->context,
|
||||
ffmpegdec->picture, FALSE))
|
||||
goto negotiation_error;
|
||||
|
||||
if (G_UNLIKELY (out_frame->output_buffer == NULL))
|
||||
*ret = get_output_buffer (ffmpegdec, out_frame);
|
||||
|
|
@ -1339,7 +1366,7 @@ gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
|
|||
if (ffmpegdec->picture->flags & AV_FRAME_FLAG_CORRUPT)
|
||||
GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_BUFFER_FLAG_CORRUPTED);
|
||||
|
||||
if (ffmpegdec->ctx_interlaced) {
|
||||
if (ffmpegdec->pic_interlaced) {
|
||||
/* set interlaced flags */
|
||||
if (ffmpegdec->picture->repeat_pict)
|
||||
GST_BUFFER_FLAG_SET (out_frame->output_buffer, GST_VIDEO_BUFFER_FLAG_RFF);
|
||||
|
|
@ -1645,14 +1672,14 @@ gst_ffmpegviddec_stop (GstVideoDecoder * decoder)
|
|||
gst_video_codec_state_unref (ffmpegdec->output_state);
|
||||
ffmpegdec->output_state = NULL;
|
||||
|
||||
ffmpegdec->ctx_width = 0;
|
||||
ffmpegdec->ctx_height = 0;
|
||||
ffmpegdec->pic_pix_fmt = 0;
|
||||
ffmpegdec->pic_width = 0;
|
||||
ffmpegdec->pic_height = 0;
|
||||
ffmpegdec->pic_par_n = 0;
|
||||
ffmpegdec->pic_par_d = 0;
|
||||
ffmpegdec->ctx_ticks = 0;
|
||||
ffmpegdec->ctx_time_n = 0;
|
||||
ffmpegdec->ctx_time_d = 0;
|
||||
ffmpegdec->ctx_pix_fmt = 0;
|
||||
ffmpegdec->ctx_par_n = 0;
|
||||
ffmpegdec->ctx_par_d = 0;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -40,16 +40,17 @@ struct _GstFFMpegVidDec
|
|||
gint stride[AV_NUM_DATA_POINTERS];
|
||||
gboolean opened;
|
||||
|
||||
/* current output pictures */
|
||||
enum PixelFormat pic_pix_fmt;
|
||||
gint pic_width;
|
||||
gint pic_height;
|
||||
gint pic_par_n;
|
||||
gint pic_par_d;
|
||||
gint pic_interlaced;
|
||||
/* current context */
|
||||
enum PixelFormat ctx_pix_fmt;
|
||||
gint ctx_width;
|
||||
gint ctx_height;
|
||||
gint ctx_par_n;
|
||||
gint ctx_par_d;
|
||||
gint ctx_ticks;
|
||||
gint ctx_time_d;
|
||||
gint ctx_time_n;
|
||||
gint ctx_interlaced;
|
||||
GstBuffer *palette;
|
||||
|
||||
guint8 *padded;
|
||||
|
|
|
|||
Loading…
Reference in a new issue