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vp8dec: Make sure to pass a keyframe as first frame to the decoder, copy output frames only once and require width/height/etc on the input caps

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This commit is contained in:
Sebastian Dröge 2010-05-14 11:01:29 +02:00
parent 29328031ad
commit 16f6ed7195
1 changed files with 35 additions and 44 deletions
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79
ext/vp8/gstvp8dec.c
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@ -62,11 +62,6 @@ struct _GstVP8Dec
/* state */
gboolean decoder_inited;
gboolean have_video_info;
gboolean is_625;
gboolean is_wide;
gboolean is_422;
};
struct _GstVP8DecClass
@ -221,6 +216,7 @@ gst_vp8_dec_start (GstBaseVideoDecoder * decoder)
GstVP8Dec *gst_vp8_dec = GST_VP8_DEC (decoder);
decoder->packetized = TRUE;
gst_vp8_dec->decoder_inited = FALSE;
vpx_codec_dec_init (&gst_vp8_dec->decoder, &vpx_codec_vp8_dx_algo, NULL,
flags);
@ -246,7 +242,6 @@ gst_vp8_dec_reset (GstBaseVideoDecoder * base_video_decoder)
decoder = GST_VP8_DEC (base_video_decoder);
decoder->decoder_inited = FALSE;
decoder->have_video_info = FALSE;
vpx_codec_dec_init (&decoder->decoder, &vpx_codec_vp8_dx_algo, NULL, flags);
@ -287,16 +282,7 @@ gst_vp8_dec_handle_frame (GstBaseVideoDecoder * decoder, GstVideoFrame * frame)
dec = GST_VP8_DEC (decoder);
gst_base_video_decoder_set_sync_point (decoder);
if (!dec->decoder_inited) {
dec->decoder_inited = TRUE;
gst_vp8_dec_send_tags (dec);
}
if (!dec->have_video_info) {
vpx_codec_stream_info_t stream_info;
vpx_codec_peek_stream_info (&vpx_codec_vp8_dx_algo,
@ -312,14 +298,13 @@ gst_vp8_dec_handle_frame (GstBaseVideoDecoder * decoder, GstVideoFrame * frame)
decoder->state.width = stream_info.w;
decoder->state.height = stream_info.h;
decoder->state.format = GST_VIDEO_FORMAT_I420;
decoder->state.fps_n = 30;
decoder->state.fps_d = 1;
decoder->state.par_n = 1;
decoder->state.par_d = 1;
dec->have_video_info = TRUE;
gst_vp8_dec_send_tags (dec);
dec->decoder_inited = TRUE;
}
if (!GST_BUFFER_FLAG_IS_SET (frame->sink_buffer, GST_BUFFER_FLAG_DELTA_UNIT))
gst_base_video_decoder_set_sync_point (decoder);
#if 0
if (GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (decoder)) == NULL) {
GstCaps *caps;
@ -348,32 +333,38 @@ gst_vp8_dec_handle_frame (GstBaseVideoDecoder * decoder, GstVideoFrame * frame)
return GST_FLOW_ERROR;
}
while ((img = vpx_codec_get_frame (&dec->decoder, &iter))) {
img = vpx_codec_get_frame (&dec->decoder, &iter);
if (img) {
int i;
for (i = 0; i < decoder->state.height; i++) {
memcpy (GST_BUFFER_DATA (frame->src_buffer) + i * decoder->state.width,
img->planes[0] + i * img->stride[0], decoder->state.width);
ret = gst_base_video_decoder_alloc_src_frame (decoder, frame);
if (ret == GST_FLOW_OK) {
for (i = 0; i < decoder->state.height; i++) {
memcpy (GST_BUFFER_DATA (frame->src_buffer) + i * decoder->state.width,
img->planes[0] + i * img->stride[0], decoder->state.width);
}
for (i = 0; i < decoder->state.height / 2; i++) {
memcpy (GST_BUFFER_DATA (frame->src_buffer) +
decoder->state.width * decoder->state.height +
i * decoder->state.width / 2,
img->planes[1] + i * img->stride[1], decoder->state.width / 2);
}
for (i = 0; i < decoder->state.height / 2; i++) {
memcpy (GST_BUFFER_DATA (frame->src_buffer) +
decoder->state.width * decoder->state.height +
decoder->state.width * decoder->state.height / 4 +
i * decoder->state.width / 2,
img->planes[2] + i * img->stride[2], decoder->state.width / 2);
}
}
for (i = 0; i < decoder->state.height / 2; i++) {
memcpy (GST_BUFFER_DATA (frame->src_buffer) +
decoder->state.width * decoder->state.height +
i * decoder->state.width / 2,
img->planes[1] + i * img->stride[1], decoder->state.width / 2);
}
for (i = 0; i < decoder->state.height / 2; i++) {
memcpy (GST_BUFFER_DATA (frame->src_buffer) +
decoder->state.width * decoder->state.height +
decoder->state.width * decoder->state.height / 4 +
i * decoder->state.width / 2,
img->planes[2] + i * img->stride[2], decoder->state.width / 2);
}
vpx_img_free (img);
gst_base_video_decoder_finish_frame (decoder, frame);
do {
vpx_img_free (img);
} while ((img = vpx_codec_get_frame (&dec->decoder, &iter)));
}
gst_base_video_decoder_finish_frame (decoder, frame);
ret = GST_FLOW_OK;
out:
return ret;