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fftools/ffmpeg: use a bsf list instead of individual bsfs

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Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint
2020-04-17 23:55:55 +02:00
parent 425e08d571
commit f821ae8591
3 changed files with 28 additions and 105 deletions
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60
fftools/ffmpeg.c
View File

@@ -558,9 +558,7 @@ static void ffmpeg_cleanup(int ret)
if (!ost)
continue;
for (j = 0; j < ost->nb_bitstream_filters; j++)
av_bsf_free(&ost->bsf_ctx[j]);
av_freep(&ost->bsf_ctx);
av_bsf_free(&ost->bsf_ctx);
av_frame_free(&ost->filtered_frame);
av_frame_free(&ost->last_frame);
@@ -859,40 +857,15 @@ static void output_packet(OutputFile *of, AVPacket *pkt,
{
int ret = 0;
/* apply the output bitstream filters, if any */
if (ost->nb_bitstream_filters) {
int idx;
ret = av_bsf_send_packet(ost->bsf_ctx[0], eof ? NULL : pkt);
/* apply the output bitstream filters */
if (ost->bsf_ctx) {
ret = av_bsf_send_packet(ost->bsf_ctx, eof ? NULL : pkt);
if (ret < 0)
goto finish;
eof = 0;
idx = 1;
while (idx) {
/* get a packet from the previous filter up the chain */
ret = av_bsf_receive_packet(ost->bsf_ctx[idx - 1], pkt);
if (ret == AVERROR(EAGAIN)) {
ret = 0;
idx--;
continue;
} else if (ret == AVERROR_EOF) {
eof = 1;
} else if (ret < 0)
goto finish;
/* send it to the next filter down the chain or to the muxer */
if (idx < ost->nb_bitstream_filters) {
ret = av_bsf_send_packet(ost->bsf_ctx[idx], eof ? NULL : pkt);
if (ret < 0)
goto finish;
idx++;
eof = 0;
} else if (eof)
goto finish;
else
while ((ret = av_bsf_receive_packet(ost->bsf_ctx, pkt)) >= 0)
write_packet(of, pkt, ost, 0);
}
if (ret == AVERROR(EAGAIN))
ret = 0;
} else if (!eof)
write_packet(of, pkt, ost, 0);
@@ -3015,35 +2988,28 @@ static int check_init_output_file(OutputFile *of, int file_index)
static int init_output_bsfs(OutputStream *ost)
{
AVBSFContext *ctx;
int i, ret;
AVBSFContext *ctx = ost->bsf_ctx;
int ret;
if (!ost->nb_bitstream_filters)
if (!ctx)
return 0;
for (i = 0; i < ost->nb_bitstream_filters; i++) {
ctx = ost->bsf_ctx[i];
ret = avcodec_parameters_copy(ctx->par_in,
i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
ret = avcodec_parameters_copy(ctx->par_in, ost->st->codecpar);
if (ret < 0)
return ret;
ctx->time_base_in = i ? ost->bsf_ctx[i - 1]->time_base_out : ost->st->time_base;
ctx->time_base_in = ost->st->time_base;
ret = av_bsf_init(ctx);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
ost->bsf_ctx[i]->filter->name);
ctx->filter->name);
return ret;
}
}
ctx = ost->bsf_ctx[ost->nb_bitstream_filters - 1];
ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
if (ret < 0)
return ret;
ost->st->time_base = ctx->time_base_out;
return 0;

3
fftools/ffmpeg.h
View File

@@ -459,8 +459,7 @@ typedef struct OutputStream {
AVRational mux_timebase;
AVRational enc_timebase;
int nb_bitstream_filters;
AVBSFContext **bsf_ctx;
AVBSFContext *bsf_ctx;
AVCodecContext *enc_ctx;
AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */

48
fftools/ffmpeg_opt.c
View File

@@ -1528,54 +1528,12 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
while (bsfs && *bsfs) {
const AVBitStreamFilter *filter;
char *bsf, *bsf_options_str, *bsf_name;
bsf = av_get_token(&bsfs, ",");
if (!bsf)
exit_program(1);
bsf_name = av_strtok(bsf, "=", &bsf_options_str);
if (!bsf_name)
exit_program(1);
filter = av_bsf_get_by_name(bsf_name);
if (!filter) {
av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
exit_program(1);
}
ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
ost->nb_bitstream_filters + 1,
sizeof(*ost->bsf_ctx));
if (!ost->bsf_ctx)
exit_program(1);
ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
if (bsfs && *bsfs) {
ret = av_bsf_list_parse_str(bsfs, &ost->bsf_ctx);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
av_log(NULL, AV_LOG_ERROR, "Error parsing bitstream filter sequence '%s': %s\n", bsfs, av_err2str(ret));
exit_program(1);
}
ost->nb_bitstream_filters++;
if (bsf_options_str && filter->priv_class) {
const AVOption *opt = av_opt_next(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, NULL);
const char * shorthand[2] = {NULL};
if (opt)
shorthand[0] = opt->name;
ret = av_opt_set_from_string(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, bsf_options_str, shorthand, "=", ":");
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
exit_program(1);
}
}
av_freep(&bsf);
if (*bsfs)
bsfs++;
}
MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);