mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-24 12:09:55 +00:00
avconv: cosmetics, move code
Move find_codec_or_die(), choose_codec(), new_output_stream() and read_avserver_streams() below transcode() where they belong.
This commit is contained in:
Anton Khirnov
parent
86530f418e
commit
169f0647b7
253
avconv.c
253
avconv.c
@ -637,133 +637,6 @@ static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
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}
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}
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static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
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{
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const char *codec_string = encoder ? "encoder" : "decoder";
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AVCodec *codec;
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if(!name)
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return CODEC_ID_NONE;
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codec = encoder ?
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avcodec_find_encoder_by_name(name) :
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avcodec_find_decoder_by_name(name);
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if(!codec) {
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av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
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exit_program(1);
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}
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if(codec->type != type) {
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av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
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exit_program(1);
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}
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return codec->id;
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}
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static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
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{
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AVDictionaryEntry *e = NULL;
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char *codec_name = NULL;
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int ret;
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while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
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char *p = strchr(e->key, ':');
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if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
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codec_name = e->value;
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else if (ret < 0)
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exit_program(1);
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}
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if (!codec_name) {
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if (s->oformat) {
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st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
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return avcodec_find_encoder(st->codec->codec_id);
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}
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} else if (!strcmp(codec_name, "copy"))
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st->stream_copy = 1;
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else {
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st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
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return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
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avcodec_find_decoder_by_name(codec_name);
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}
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return NULL;
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}
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static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, enum AVMediaType type)
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{
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OutputStream *ost;
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AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
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int idx = oc->nb_streams - 1;
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if (!st) {
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av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
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exit_program(1);
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}
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output_streams_for_file[file_idx] =
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grow_array(output_streams_for_file[file_idx],
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sizeof(*output_streams_for_file[file_idx]),
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&nb_output_streams_for_file[file_idx],
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oc->nb_streams);
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ost = output_streams_for_file[file_idx][idx] =
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av_mallocz(sizeof(OutputStream));
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if (!ost) {
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fprintf(stderr, "Could not alloc output stream\n");
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exit_program(1);
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}
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ost->file_index = file_idx;
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ost->index = idx;
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ost->st = st;
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st->codec->codec_type = type;
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ost->enc = choose_codec(oc, st, type, codec_names);
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if (ost->enc) {
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ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
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}
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avcodec_get_context_defaults3(st->codec, ost->enc);
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st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
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ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
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return ost;
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}
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static int read_avserver_streams(AVFormatContext *s, const char *filename)
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{
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int i, err;
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AVFormatContext *ic = NULL;
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int nopts = 0;
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err = avformat_open_input(&ic, filename, NULL, NULL);
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if (err < 0)
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return err;
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/* copy stream format */
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for(i=0;i<ic->nb_streams;i++) {
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AVStream *st;
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OutputStream *ost;
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AVCodec *codec;
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codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
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ost = new_output_stream(s, nb_output_files, codec->type);
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st = ost->st;
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// FIXME: a more elegant solution is needed
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memcpy(st, ic->streams[i], sizeof(AVStream));
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st->info = NULL;
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avcodec_copy_context(st->codec, ic->streams[i]->codec);
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if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
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choose_sample_fmt(st, codec);
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else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
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choose_pixel_fmt(st, codec);
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if(st->codec->flags & CODEC_FLAG_BITEXACT)
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nopts = 1;
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}
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av_close_input_file(ic);
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return 0;
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}
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static double
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get_sync_ipts(const OutputStream *ost)
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{
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@ -2919,6 +2792,57 @@ static int opt_input_ts_offset(const char *opt, const char *arg)
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return 0;
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}
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static enum CodecID find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
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{
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const char *codec_string = encoder ? "encoder" : "decoder";
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AVCodec *codec;
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if(!name)
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return CODEC_ID_NONE;
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codec = encoder ?
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avcodec_find_encoder_by_name(name) :
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avcodec_find_decoder_by_name(name);
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if(!codec) {
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av_log(NULL, AV_LOG_ERROR, "Unknown %s '%s'\n", codec_string, name);
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exit_program(1);
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}
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if(codec->type != type) {
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av_log(NULL, AV_LOG_ERROR, "Invalid %s type '%s'\n", codec_string, name);
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exit_program(1);
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}
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return codec->id;
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}
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static AVCodec *choose_codec(AVFormatContext *s, AVStream *st, enum AVMediaType type, AVDictionary *codec_names)
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{
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AVDictionaryEntry *e = NULL;
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char *codec_name = NULL;
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int ret;
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while (e = av_dict_get(codec_names, "", e, AV_DICT_IGNORE_SUFFIX)) {
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char *p = strchr(e->key, ':');
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if ((ret = check_stream_specifier(s, st, p ? p + 1 : "")) > 0)
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codec_name = e->value;
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else if (ret < 0)
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exit_program(1);
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}
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if (!codec_name) {
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if (s->oformat) {
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st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename, NULL, type);
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return avcodec_find_encoder(st->codec->codec_id);
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}
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} else if (!strcmp(codec_name, "copy"))
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st->stream_copy = 1;
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else {
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st->codec->codec_id = find_codec_or_die(codec_name, type, s->iformat == NULL);
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return s->oformat ? avcodec_find_encoder_by_name(codec_name) :
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avcodec_find_decoder_by_name(codec_name);
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}
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return NULL;
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}
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static int opt_input_file(const char *opt, const char *filename)
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{
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@ -3151,6 +3075,44 @@ static void parse_forced_key_frames(char *kf, OutputStream *ost,
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}
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}
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static OutputStream *new_output_stream(AVFormatContext *oc, int file_idx, enum AVMediaType type)
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{
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OutputStream *ost;
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AVStream *st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
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int idx = oc->nb_streams - 1;
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if (!st) {
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av_log(NULL, AV_LOG_ERROR, "Could not alloc stream.\n");
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exit_program(1);
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}
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output_streams_for_file[file_idx] =
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grow_array(output_streams_for_file[file_idx],
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sizeof(*output_streams_for_file[file_idx]),
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&nb_output_streams_for_file[file_idx],
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oc->nb_streams);
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ost = output_streams_for_file[file_idx][idx] =
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av_mallocz(sizeof(OutputStream));
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if (!ost) {
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fprintf(stderr, "Could not alloc output stream\n");
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exit_program(1);
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}
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ost->file_index = file_idx;
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ost->index = idx;
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ost->st = st;
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st->codec->codec_type = type;
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ost->enc = choose_codec(oc, st, type, codec_names);
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if (ost->enc) {
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ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
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}
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avcodec_get_context_defaults3(st->codec, ost->enc);
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st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
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ost->sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
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return ost;
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}
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static OutputStream *new_video_stream(AVFormatContext *oc, int file_idx)
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{
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AVStream *st;
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@ -3430,6 +3392,43 @@ static int copy_chapters(int infile, int outfile)
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return 0;
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}
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static int read_avserver_streams(AVFormatContext *s, const char *filename)
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{
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int i, err;
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AVFormatContext *ic = NULL;
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int nopts = 0;
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err = avformat_open_input(&ic, filename, NULL, NULL);
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if (err < 0)
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return err;
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/* copy stream format */
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for(i=0;i<ic->nb_streams;i++) {
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AVStream *st;
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OutputStream *ost;
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AVCodec *codec;
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codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
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ost = new_output_stream(s, nb_output_files, codec->type);
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st = ost->st;
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// FIXME: a more elegant solution is needed
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memcpy(st, ic->streams[i], sizeof(AVStream));
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st->info = NULL;
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avcodec_copy_context(st->codec, ic->streams[i]->codec);
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if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !st->stream_copy)
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choose_sample_fmt(st, codec);
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else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !st->stream_copy)
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choose_pixel_fmt(st, codec);
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if(st->codec->flags & CODEC_FLAG_BITEXACT)
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nopts = 1;
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}
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av_close_input_file(ic);
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return 0;
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}
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static void opt_output_file(const char *filename)
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{
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AVFormatContext *oc;
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