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fftools/ffmpeg_filter: stop accessing AVCodecContext.codec 

Instead pass the encoder through a newly-added output options struct,
analogous to previously added input options.

Will allow decoupling filtering from encoding in future commits.
This commit is contained in:
Anton Khirnov 2024-04-01 06:07:45 +02:00
parent 8c33085313
commit 8e35e33d42
3 changed files with 34 additions and 21 deletions
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11
fftools/ffmpeg.h
View File

@ -263,6 +263,11 @@ typedef struct InputFilterOptions {
AVFrame *fallback;
} InputFilterOptions;
typedef struct OutputFilterOptions {
// Codec used for encoding, may be NULL
const AVCodec *enc;
} OutputFilterOptions;
typedef struct InputFilter {
struct FilterGraph *graph;
uint8_t *name;
@ -684,7 +689,8 @@ int parse_and_set_vsync(const char *arg, int *vsync_var, int file_idx, int st_id
int filtergraph_is_simple(const FilterGraph *fg);
int init_simple_filtergraph(InputStream *ist, OutputStream *ost,
char *graph_desc,
Scheduler *sch, unsigned sch_idx_enc);
Scheduler *sch, unsigned sch_idx_enc,
const OutputFilterOptions *opts);
int fg_finalise_bindings(FilterGraph *fg);
/**
@ -699,7 +705,8 @@ FrameData *packet_data (AVPacket *pkt);
const FrameData *packet_data_c(AVPacket *pkt);
int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost,
unsigned sched_idx_enc);
unsigned sched_idx_enc,
const OutputFilterOptions *opts);
/**
* Create a new filtergraph in the global filtergraph list.

36
fftools/ffmpeg_filter.c
View File

@ -763,13 +763,13 @@ static int set_channel_layout(OutputFilterPriv *f, const AVChannelLayout *layout
}
int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost,
unsigned sched_idx_enc)
unsigned sched_idx_enc,
const OutputFilterOptions *opts)
{
const OutputFile *of = ost->file;
OutputFilterPriv *ofp = ofp_from_ofilter(ofilter);
FilterGraph *fg = ofilter->graph;
FilterGraphPriv *fgp = fgp_from_fg(fg);
const AVCodec *c = ost->enc_ctx->codec;
int ret;
av_assert0(!ofilter->ost);
@ -786,14 +786,14 @@ int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost,
ofp->height = ost->enc_ctx->height;
if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
ofp->format = ost->enc_ctx->pix_fmt;
} else {
ofp->formats = c->pix_fmts;
} else if (opts->enc) {
ofp->formats = opts->enc->pix_fmts;
// MJPEG encoder exports a full list of supported pixel formats,
// but the full-range ones are experimental-only.
// Restrict the auto-conversion list unless -strict experimental
// has been specified.
if (!strcmp(c->name, "mjpeg")) {
if (!strcmp(opts->enc->name, "mjpeg")) {
// FIXME: YUV420P etc. are actually supported with full color range,
// yet the latter information isn't available here.
static const enum AVPixelFormat mjpeg_formats[] =
@ -822,11 +822,11 @@ int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost,
ofp->fps.framerate = ost->frame_rate;
ofp->fps.framerate_max = ost->max_frame_rate;
ofp->fps.framerate_supported = ost->force_fps ?
NULL : c->supported_framerates;
ofp->fps.framerate_supported = ost->force_fps && opts->enc ?
NULL : opts->enc->supported_framerates;
// reduce frame rate for mpeg4 to be within the spec limits
if (c->id == AV_CODEC_ID_MPEG4)
if (opts->enc && opts->enc->id == AV_CODEC_ID_MPEG4)
ofp->fps.framerate_clip = 65535;
ofp->fps.dup_warning = 1000;
@ -835,20 +835,21 @@ int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost,
case AVMEDIA_TYPE_AUDIO:
if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
ofp->format = ost->enc_ctx->sample_fmt;
} else {
ofp->formats = c->sample_fmts;
} else if (opts->enc) {
ofp->formats = opts->enc->sample_fmts;
}
if (ost->enc_ctx->sample_rate) {
ofp->sample_rate = ost->enc_ctx->sample_rate;
} else {
ofp->sample_rates = c->supported_samplerates;
} else if (opts->enc) {
ofp->sample_rates = opts->enc->supported_samplerates;
}
if (ost->enc_ctx->ch_layout.nb_channels) {
int ret = set_channel_layout(ofp, c->ch_layouts, &ost->enc_ctx->ch_layout);
int ret = set_channel_layout(ofp, opts->enc ? opts->enc->ch_layouts : NULL,
&ost->enc_ctx->ch_layout);
if (ret < 0)
return ret;
} else if (c->ch_layouts) {
ofp->ch_layouts = c->ch_layouts;
} else if (opts->enc) {
ofp->ch_layouts = opts->enc->ch_layouts;
}
break;
}
@ -1079,7 +1080,8 @@ fail:
int init_simple_filtergraph(InputStream *ist, OutputStream *ost,
char *graph_desc,
Scheduler *sch, unsigned sched_idx_enc)
Scheduler *sch, unsigned sched_idx_enc,
const OutputFilterOptions *opts)
{
FilterGraph *fg;
FilterGraphPriv *fgp;
@ -1111,7 +1113,7 @@ int init_simple_filtergraph(InputStream *ist, OutputStream *ost,
if (ret < 0)
return ret;
ret = ofilter_bind_ost(fg->outputs[0], ost, sched_idx_enc);
ret = ofilter_bind_ost(fg->outputs[0], ost, sched_idx_enc, opts);
if (ret < 0)
return ret;

8
fftools/ffmpeg_mux_init.c
View File

@ -1371,14 +1371,18 @@ static int ost_add(Muxer *mux, const OptionsContext *o, enum AVMediaType type,
if (ost->enc &&
(type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO)) {
OutputFilterOptions opts = {
.enc = enc,
};
if (ofilter) {
ost->filter = ofilter;
ret = ofilter_bind_ost(ofilter, ost, ms->sch_idx_enc);
ret = ofilter_bind_ost(ofilter, ost, ms->sch_idx_enc, &opts);
if (ret < 0)
return ret;
} else {
ret = init_simple_filtergraph(ost->ist, ost, filters,
mux->sch, ms->sch_idx_enc);
mux->sch, ms->sch_idx_enc, &opts);
if (ret < 0) {
av_log(ost, AV_LOG_ERROR,
"Error initializing a simple filtergraph\n");