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avcodec/decode: use a single list bsf for codec decode bsfs

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Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2020-04-25 23:48:21 +02:00
parent a75924ec88
commit c96904f525
3 changed files with 25 additions and 152 deletions
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2
libavcodec/cuviddec.c
View File

@ -946,7 +946,7 @@ static av_cold int cuvid_decode_init(AVCodecContext *avctx)
}
if (avctx->codec->bsfs) {
const AVCodecParameters *par = avctx->internal->filter.bsfs[avctx->internal->filter.nb_bsfs - 1]->par_out;
const AVCodecParameters *par = avctx->internal->bsf->par_out;
ctx->cuparse_ext.format.seqhdr_data_length = par->extradata_size;
memcpy(ctx->cuparse_ext.raw_seqhdr_data,
par->extradata,

168
libavcodec/decode.c
View File

@ -204,146 +204,37 @@ static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
int ff_decode_bsfs_init(AVCodecContext *avctx)
{
AVCodecInternal *avci = avctx->internal;
DecodeFilterContext *s = &avci->filter;
const char *bsfs_str;
int ret;
if (s->nb_bsfs)
if (avci->bsf)
return 0;
bsfs_str = avctx->codec->bsfs ? avctx->codec->bsfs : "null";
while (bsfs_str && *bsfs_str) {
AVBSFContext **tmp;
const AVBitStreamFilter *filter;
char *bsf, *bsf_options_str, *bsf_name;
bsf = av_get_token(&bsfs_str, ",");
if (!bsf) {
ret = AVERROR(ENOMEM);
goto fail;
}
bsf_name = av_strtok(bsf, "=", &bsf_options_str);
if (!bsf_name) {
av_freep(&bsf);
ret = AVERROR(ENOMEM);
goto fail;
}
filter = av_bsf_get_by_name(bsf_name);
if (!filter) {
av_log(avctx, AV_LOG_ERROR, "A non-existing bitstream filter %s "
"requested by a decoder. This is a bug, please report it.\n",
bsf_name);
av_freep(&bsf);
ret = av_bsf_list_parse_str(avctx->codec->bsfs, &avci->bsf);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error parsing decoder bitstream filters '%s': %s\n", avctx->codec->bsfs, av_err2str(ret));
if (ret != AVERROR(ENOMEM))
ret = AVERROR_BUG;
goto fail;
}
tmp = av_realloc_array(s->bsfs, s->nb_bsfs + 1, sizeof(*s->bsfs));
if (!tmp) {
av_freep(&bsf);
ret = AVERROR(ENOMEM);
goto fail;
}
s->bsfs = tmp;
ret = av_bsf_alloc(filter, &s->bsfs[s->nb_bsfs]);
if (ret < 0) {
av_freep(&bsf);
goto fail;
}
s->nb_bsfs++;
if (s->nb_bsfs == 1) {
/* We do not currently have an API for passing the input timebase into decoders,
* but no filters used here should actually need it.
* So we make up some plausible-looking number (the MPEG 90kHz timebase) */
s->bsfs[s->nb_bsfs - 1]->time_base_in = (AVRational){ 1, 90000 };
ret = avcodec_parameters_from_context(s->bsfs[s->nb_bsfs - 1]->par_in,
avctx);
} else {
s->bsfs[s->nb_bsfs - 1]->time_base_in = s->bsfs[s->nb_bsfs - 2]->time_base_out;
ret = avcodec_parameters_copy(s->bsfs[s->nb_bsfs - 1]->par_in,
s->bsfs[s->nb_bsfs - 2]->par_out);
}
if (ret < 0) {
av_freep(&bsf);
goto fail;
}
if (bsf_options_str && filter->priv_class) {
const AVOption *opt = av_opt_next(s->bsfs[s->nb_bsfs - 1]->priv_data, NULL);
const char * shorthand[2] = {NULL};
if (opt)
shorthand[0] = opt->name;
ret = av_opt_set_from_string(s->bsfs[s->nb_bsfs - 1]->priv_data, bsf_options_str, shorthand, "=", ":");
if (ret < 0) {
if (ret != AVERROR(ENOMEM)) {
av_log(avctx, AV_LOG_ERROR, "Invalid options for bitstream filter %s "
"requested by the decoder. This is a bug, please report it.\n",
bsf_name);
ret = AVERROR_BUG;
}
av_freep(&bsf);
goto fail;
}
}
av_freep(&bsf);
ret = av_bsf_init(s->bsfs[s->nb_bsfs - 1]);
if (ret < 0)
goto fail;
if (*bsfs_str)
bsfs_str++;
goto fail;
}
/* We do not currently have an API for passing the input timebase into decoders,
* but no filters used here should actually need it.
* So we make up some plausible-looking number (the MPEG 90kHz timebase) */
avci->bsf->time_base_in = (AVRational){ 1, 90000 };
ret = avcodec_parameters_from_context(avci->bsf->par_in, avctx);
if (ret < 0)
goto fail;
ret = av_bsf_init(avci->bsf);
if (ret < 0)
goto fail;
return 0;
fail:
ff_decode_bsfs_uninit(avctx);
return ret;
}
/* try to get one output packet from the filter chain */
static int bsfs_poll(AVCodecContext *avctx, AVPacket *pkt)
{
DecodeFilterContext *s = &avctx->internal->filter;
int idx, ret;
/* start with the last filter in the chain */
idx = s->nb_bsfs - 1;
while (idx >= 0) {
/* request a packet from the currently selected filter */
ret = av_bsf_receive_packet(s->bsfs[idx], pkt);
if (ret == AVERROR(EAGAIN)) {
/* no packets available, try the next filter up the chain */
idx--;
continue;
} else if (ret < 0 && ret != AVERROR_EOF) {
return ret;
}
/* got a packet or EOF -- pass it to the caller or to the next filter
* down the chain */
if (idx == s->nb_bsfs - 1) {
return ret;
} else {
idx++;
ret = av_bsf_send_packet(s->bsfs[idx], ret < 0 ? NULL : pkt);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR,
"Error pre-processing a packet before decoding\n");
av_packet_unref(pkt);
return ret;
}
}
}
return AVERROR(EAGAIN);
}
int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
{
AVCodecInternal *avci = avctx->internal;
@ -352,7 +243,7 @@ int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
if (avci->draining)
return AVERROR_EOF;
ret = bsfs_poll(avctx, pkt);
ret = av_bsf_receive_packet(avci->bsf, pkt);
if (ret == AVERROR_EOF)
avci->draining = 1;
if (ret < 0)
@ -713,7 +604,7 @@ int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacke
return ret;
}
ret = av_bsf_send_packet(avci->filter.bsfs[0], avci->buffer_pkt);
ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt);
if (ret < 0) {
av_packet_unref(avci->buffer_pkt);
return ret;
@ -2072,14 +1963,6 @@ int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
return ret;
}
static void bsfs_flush(AVCodecContext *avctx)
{
DecodeFilterContext *s = &avctx->internal->filter;
for (int i = 0; i < s->nb_bsfs; i++)
av_bsf_flush(s->bsfs[i]);
}
void avcodec_flush_buffers(AVCodecContext *avctx)
{
AVCodecInternal *avci = avctx->internal;
@ -2117,7 +2000,8 @@ void avcodec_flush_buffers(AVCodecContext *avctx)
avctx->pts_correction_last_pts =
avctx->pts_correction_last_dts = INT64_MIN;
bsfs_flush(avctx);
if (av_codec_is_decoder(avctx->codec))
av_bsf_flush(avci->bsf);
if (!avctx->refcounted_frames)
av_frame_unref(avci->to_free);
@ -2125,11 +2009,5 @@ void avcodec_flush_buffers(AVCodecContext *avctx)
void ff_decode_bsfs_uninit(AVCodecContext *avctx)
{
DecodeFilterContext *s = &avctx->internal->filter;
int i;
for (i = 0; i < s->nb_bsfs; i++)
av_bsf_free(&s->bsfs[i]);
av_freep(&s->bsfs);
s->nb_bsfs = 0;
av_bsf_free(&avctx->internal->bsf);
}

7
libavcodec/internal.h
View File

@ -113,11 +113,6 @@ typedef struct DecodeSimpleContext {
AVFrame *out_frame;
} DecodeSimpleContext;
typedef struct DecodeFilterContext {
AVBSFContext **bsfs;
int nb_bsfs;
} DecodeFilterContext;
typedef struct AVCodecInternal {
/**
* Whether the parent AVCodecContext is a copy of the context which had
@ -140,7 +135,7 @@ typedef struct AVCodecInternal {
void *thread_ctx;
DecodeSimpleContext ds;
DecodeFilterContext filter;
AVBSFContext *bsf;
/**
* Properties (timestamps+side data) extracted from the last packet passed