[FFmpeg-cvslog] avconv: support parsing bitstream filter options
James Almer
git at videolan.org
Tue Mar 28 00:52:07 EEST 2017
ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Fri Oct 28 21:44:51 2016 -0300| [064f19f39e2f17927278c6ad8fe884a5b92310d6] | committer: Anton Khirnov
avconv: support parsing bitstream filter options
Example usage:
avconv -i INPUT -bsf filter[=opt1=val1:opt2=val2] OUTPUT
Signed-off-by: James Almer <jamrial at gmail.com>
Signed-off-by: Anton Khirnov <anton at khirnov.net>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=064f19f39e2f17927278c6ad8fe884a5b92310d6
---
avconv.c | 15 ++-------------
avconv.h | 1 -
avconv_opt.c | 46 +++++++++++++++++++++++++++++++++++++---------
3 files changed, 39 insertions(+), 23 deletions(-)
diff --git a/avconv.c b/avconv.c
index 0b75cbe..4bd28e6 100644
--- a/avconv.c
+++ b/avconv.c
@@ -190,7 +190,6 @@ static void avconv_cleanup(int ret)
for (j = 0; j < ost->nb_bitstream_filters; j++)
av_bsf_free(&ost->bsf_ctx[j]);
av_freep(&ost->bsf_ctx);
- av_freep(&ost->bitstream_filters);
av_frame_free(&ost->filtered_frame);
@@ -1798,17 +1797,8 @@ static int init_output_bsfs(OutputStream *ost)
if (!ost->nb_bitstream_filters)
return 0;
- ost->bsf_ctx = av_mallocz_array(ost->nb_bitstream_filters, sizeof(*ost->bsf_ctx));
- if (!ost->bsf_ctx)
- return AVERROR(ENOMEM);
-
for (i = 0; i < ost->nb_bitstream_filters; i++) {
- ret = av_bsf_alloc(ost->bitstream_filters[i], &ctx);
- if (ret < 0) {
- av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
- return ret;
- }
- ost->bsf_ctx[i] = ctx;
+ ctx = ost->bsf_ctx[i];
ret = avcodec_parameters_copy(ctx->par_in,
i ? ost->bsf_ctx[i - 1]->par_out : ost->st->codecpar);
@@ -1820,12 +1810,11 @@ static int init_output_bsfs(OutputStream *ost)
ret = av_bsf_init(ctx);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
- ost->bitstream_filters[i]->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;
diff --git a/avconv.h b/avconv.h
index fcdf3d0..6360f76 100644
--- a/avconv.h
+++ b/avconv.h
@@ -360,7 +360,6 @@ typedef struct OutputStream {
AVRational mux_timebase;
int nb_bitstream_filters;
- const AVBitStreamFilter **bitstream_filters;
AVBSFContext **bsf_ctx;
AVCodecContext *enc_ctx;
diff --git a/avconv_opt.c b/avconv_opt.c
index 362a5b7..ba37a3a 100644
--- a/avconv_opt.c
+++ b/avconv_opt.c
@@ -1025,26 +1025,54 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
while (bsfs && *bsfs) {
const AVBitStreamFilter *filter;
- char *bsf;
+ const char *bsf, *bsf_options_str, *bsf_name;
+ AVDictionary *bsf_options = NULL;
- bsf = av_get_token(&bsfs, ",");
+ bsf = bsf_options_str = av_get_token(&bsfs, ",");
if (!bsf)
exit_program(1);
+ bsf_name = av_get_token(&bsf_options_str, "=");
+ if (!bsf_name)
+ exit_program(1);
- filter = av_bsf_get_by_name(bsf);
+ filter = av_bsf_get_by_name(bsf_name);
if (!filter) {
- av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
+ av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
exit_program(1);
}
+ if (*bsf_options_str++) {
+ ret = av_dict_parse_string(&bsf_options, bsf_options_str, "=", ":", 0);
+ 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);
- ost->bitstream_filters = av_realloc_array(ost->bitstream_filters,
- ost->nb_bitstream_filters + 1,
- sizeof(*ost->bitstream_filters));
- if (!ost->bitstream_filters)
+ 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 (ret < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Error allocating a bistream filter context\n");
exit_program(1);
+ }
+ ost->nb_bitstream_filters++;
+
+ if (bsf_options) {
+ ret = av_opt_set_dict(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, &bsf_options);
+ if (ret < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Error setting options for bitstream filter %s\n", bsf_name);
+ exit_program(1);
+ }
+ assert_avoptions(bsf_options);
+ av_dict_free(&bsf_options);
+ }
+ av_freep(&bsf_name);
- ost->bitstream_filters[ost->nb_bitstream_filters++] = filter;
if (*bsfs)
bsfs++;
}
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