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Code Issues Releases Activity

crystalhd: Use up-to-date bsf API

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Although the old API is supposed to be functional, the crystalhd
decoder is currently not working for non-annex.b h.264 content.

So, let's update to the modern API and make it work again.

Signed-off-by: Philip Langdale <philipl@overt.org>
This commit is contained in:
Philip Langdale 2016-09-18 12:43:25 -07:00
parent 0b420886a4
commit 7447ec91b5
1 changed files with 67 additions and 24 deletions
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91
libavcodec/crystalhd.c
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@ -131,7 +131,7 @@ typedef struct {
uint8_t *orig_extradata;
uint32_t orig_extradata_size;
AVBitStreamFilterContext *bsfc;
AVBSFContext *bsfc;
AVCodecParserContext *parser;
uint8_t is_70012;
@ -359,7 +359,7 @@ static av_cold int uninit(AVCodecContext *avctx)
av_parser_close(priv->parser);
if (priv->bsfc) {
av_bitstream_filter_close(priv->bsfc);
av_bsf_free(&priv->bsfc);
}
av_freep(&priv->sps_pps_buf);
@ -418,30 +418,46 @@ static av_cold int init(AVCodecContext *avctx)
switch (subtype) {
case BC_MSUBTYPE_AVC1:
{
uint8_t *dummy_p;
int dummy_int;
const AVBitStreamFilter *bsf;
int avret;
/* Back up the extradata so it can be restored at close time. */
priv->orig_extradata = av_malloc(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!priv->orig_extradata) {
av_log(avctx, AV_LOG_ERROR,
"Failed to allocate copy of extradata\n");
return AVERROR(ENOMEM);
}
priv->orig_extradata_size = avctx->extradata_size;
memcpy(priv->orig_extradata, avctx->extradata, avctx->extradata_size);
priv->bsfc = av_bitstream_filter_init("h264_mp4toannexb");
if (!priv->bsfc) {
bsf = av_bsf_get_by_name("h264_mp4toannexb");
if (!bsf) {
av_log(avctx, AV_LOG_ERROR,
"Cannot open the h264_mp4toannexb BSF!\n");
return AVERROR_BSF_NOT_FOUND;
}
av_bitstream_filter_filter(priv->bsfc, avctx, NULL, &dummy_p,
&dummy_int, NULL, 0, 0);
avret = av_bsf_alloc(bsf, &priv->bsfc);
if (avret != 0) {
return AVERROR(ENOMEM);
}
avret = avcodec_parameters_from_context(priv->bsfc->par_in, avctx);
if (avret != 0) {
return AVERROR(ENOMEM);
}
avret = av_bsf_init(priv->bsfc);
if (avret != 0) {
return AVERROR(ENOMEM);
}
format.metaDataSz = priv->bsfc->par_out->extradata_size;
format.pMetaData = av_malloc(format.metaDataSz + AV_INPUT_BUFFER_PADDING_SIZE);
if (!format.pMetaData) {
av_log(avctx, AV_LOG_ERROR,
"Failed to allocate copy of extradata\n");
return AVERROR(ENOMEM);
}
memcpy(format.pMetaData, priv->bsfc->par_out->extradata, format.metaDataSz);
/* Back up the extradata so it can be restored at close time. */
priv->orig_extradata = avctx->extradata;
priv->orig_extradata_size = avctx->extradata_size;
avctx->extradata = format.pMetaData;
avctx->extradata_size = format.metaDataSz;
}
subtype = BC_MSUBTYPE_H264;
// Fall-through
format.startCodeSz = 4;
break;
case BC_MSUBTYPE_H264:
format.startCodeSz = 4;
// Fall-through
@ -901,14 +917,41 @@ static int decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *a
if (len) {
int32_t tx_free = (int32_t)DtsTxFreeSize(dev);
if (priv->bsfc) {
int ret = 0;
AVPacket filter_packet = { 0 };
AVPacket filtered_packet = { 0 };
ret = av_packet_ref(&filter_packet, avpkt);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "CrystalHD: mpv4toannexb filter "
"failed to ref input packet\n");
return ret;
}
ret = av_bsf_send_packet(priv->bsfc, &filter_packet);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "CrystalHD: mpv4toannexb filter "
"failed to send input packet\n");
return ret;
}
ret = av_bsf_receive_packet(priv->bsfc, &filtered_packet);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "CrystalHD: mpv4toannexb filter "
"failed to receive output packet\n");
return ret;
}
in_data = filtered_packet.data;
len = filtered_packet.size;
av_packet_unref(&filter_packet);
}
if (priv->parser) {
int ret = 0;
if (priv->bsfc) {
ret = av_bitstream_filter_filter(priv->bsfc, avctx, NULL,
&in_data, &len,
avpkt->data, len, 0);
}
free_data = ret > 0;
if (ret >= 0) {