/* audio only */
int audio_resample;
ReSampleContext *resample; /* for audio resampling */
+ int resample_sample_fmt;
+ int resample_channels;
+ int resample_sample_rate;
int reformat_pair;
AVAudioConvert *reformat_ctx;
AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
int64_t audio_out_size, audio_buf_size;
int64_t allocated_for_size= size;
- int size_out, frame_bytes, ret;
+ int size_out, frame_bytes, ret, resample_changed;
AVCodecContext *enc= ost->st->codec;
AVCodecContext *dec= ist->st->codec;
int osize= av_get_bits_per_sample_fmt(enc->sample_fmt)/8;
if (enc->channels != dec->channels)
ost->audio_resample = 1;
- if (ost->audio_resample && !ost->resample) {
- if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
- fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
- ost->resample = av_audio_resample_init(enc->channels, dec->channels,
- enc->sample_rate, dec->sample_rate,
- enc->sample_fmt, dec->sample_fmt,
- 16, 10, 0, 0.8);
- if (!ost->resample) {
- fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
- dec->channels, dec->sample_rate,
- enc->channels, enc->sample_rate);
- ffmpeg_exit(1);
+ resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
+ ost->resample_channels != dec->channels ||
+ ost->resample_sample_rate != dec->sample_rate;
+
+ if ((ost->audio_resample && !ost->resample) || resample_changed) {
+ if (resample_changed) {
+ av_log(NULL, AV_LOG_INFO, "Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
+ ist->file_index, ist->index,
+ ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
+ dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
+ ost->resample_sample_fmt = dec->sample_fmt;
+ ost->resample_channels = dec->channels;
+ ost->resample_sample_rate = dec->sample_rate;
+ if (ost->resample)
+ audio_resample_close(ost->resample);
+ }
+ if (ost->resample_sample_fmt == enc->sample_fmt &&
+ ost->resample_channels == enc->channels &&
+ ost->resample_sample_rate == enc->sample_rate) {
+ ost->resample = NULL;
+ ost->audio_resample = 0;
+ } else {
+ if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
+ fprintf(stderr, "Warning, using s16 intermediate sample format for resampling\n");
+ ost->resample = av_audio_resample_init(enc->channels, dec->channels,
+ enc->sample_rate, dec->sample_rate,
+ enc->sample_fmt, dec->sample_fmt,
+ 16, 10, 0, 0.8);
+ if (!ost->resample) {
+ fprintf(stderr, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
+ dec->channels, dec->sample_rate,
+ enc->channels, enc->sample_rate);
+ ffmpeg_exit(1);
+ }
}
}
nb_ostreams = 0;
for(i=0;i<nb_output_files;i++) {
os = output_files[i];
- if (!os->nb_streams) {
+ if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
dump_format(output_files[i], i, output_files[i]->filename, 1);
fprintf(stderr, "Output file #%d does not contain any stream\n", i);
ret = AVERROR(EINVAL);
icodec->request_channels = codec->channels;
ist->decoding_needed = 1;
ost->encoding_needed = 1;
+ ost->resample_sample_fmt = icodec->sample_fmt;
+ ost->resample_sample_rate = icodec->sample_rate;
+ ost->resample_channels = icodec->channels;
break;
case AVMEDIA_TYPE_VIDEO:
if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
AVOutputStream *ost;
AVCodec *codec=NULL;
AVCodecContext *subtitle_enc;
+ enum CodecID codec_id;
st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
if (!st) {
subtitle_enc = st->codec;
output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
if(!subtitle_stream_copy){
- subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
- avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
- codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
+ if (subtitle_codec_name) {
+ codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
+ avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
+ codec= output_codecs[nb_output_codecs-1] = avcodec_find_encoder_by_name(subtitle_codec_name);
+ } else {
+ codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_SUBTITLE);
+ codec = avcodec_find_encoder(codec_id);
+ }
}
avcodec_get_context_defaults3(st->codec, codec);
if (subtitle_stream_copy) {
st->stream_copy = 1;
} else {
+ subtitle_enc->codec_id = codec_id;
set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
}
static void show_help(void)
{
+ AVCodec *c;
+
av_log_set_callback(log_callback_help);
show_usage();
show_help_options(options, "Main options:\n",
printf("\n");
av_opt_show2(avcodec_opts[0], NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
printf("\n");
+
+ /* individual codec options */
+ c = NULL;
+ while ((c = av_codec_next(c))) {
+ if (c->priv_class) {
+ av_opt_show2(&c->priv_class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
+ printf("\n");
+ }
+ }
+
av_opt_show2(avformat_opts, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
printf("\n");
av_opt_show2(sws_opts, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);