diff options
| -rw-r--r-- | libavfilter/vsrc_movie.c | 2 | ||||
| -rw-r--r-- | libavformat/avformat.h | 27 | ||||
| -rw-r--r-- | libavformat/utils.c | 18 |
3 files changed, 41 insertions, 6 deletions
diff --git a/libavfilter/vsrc_movie.c b/libavfilter/vsrc_movie.c index bd74f95545..b018ba7418 100644 --- a/libavfilter/vsrc_movie.c +++ b/libavfilter/vsrc_movie.c @@ -96,7 +96,7 @@ static int movie_init(AVFilterContext *ctx) "Failed to avformat_open_input '%s'\n", movie->file_name); return ret; } - if ((ret = av_find_stream_info(movie->format_ctx)) < 0) + if ((ret = avformat_find_stream_info(movie->format_ctx, NULL)) < 0) av_log(ctx, AV_LOG_WARNING, "Failed to find stream info\n"); // if seeking requested, we execute it diff --git a/libavformat/avformat.h b/libavformat/avformat.h index 2cdf11be12..6e861de262 100644 --- a/libavformat/avformat.h +++ b/libavformat/avformat.h @@ -1093,6 +1093,7 @@ int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputForma */ AVFormatContext *avformat_alloc_context(void); +#if FF_API_FORMAT_PARAMETERS /** * Read packets of a media file to get stream information. This * is useful for file formats with no headers such as MPEG. This @@ -1105,8 +1106,34 @@ AVFormatContext *avformat_alloc_context(void); * @return >=0 if OK, AVERROR_xxx on error * @todo Let the user decide somehow what information is needed so that * we do not waste time getting stuff the user does not need. + * + * @deprecated use avformat_find_stream_info. */ int av_find_stream_info(AVFormatContext *ic); +#endif + +/** + * Read packets of a media file to get stream information. This + * is useful for file formats with no headers such as MPEG. This + * function also computes the real framerate in case of MPEG-2 repeat + * frame mode. + * The logical file position is not changed by this function; + * examined packets may be buffered for later processing. + * + * @param ic media file handle + * @param options If non-NULL, an ic.nb_streams long array of pointers to + * dictionaries, where i-th member contains options for + * codec corresponding to i-th stream. + * On return each dictionary will be filled with options that were not found. + * @return >=0 if OK, AVERROR_xxx on error + * + * @note this function isn't guaranteed to open all the codecs, so + * options being non-empty at return is a perfectly normal behavior. + * + * @todo Let the user decide somehow what information is needed so that + * we do not waste time getting stuff the user does not need. + */ +int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options); /** * Find the "best" stream in the file. diff --git a/libavformat/utils.c b/libavformat/utils.c index e38d9efa60..a3825a0c93 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -2074,7 +2074,7 @@ static int has_decode_delay_been_guessed(AVStream *st) st->codec_info_nb_frames >= 6 + st->codec->has_b_frames; } -static int try_decode_frame(AVStream *st, AVPacket *avpkt) +static int try_decode_frame(AVStream *st, AVPacket *avpkt, AVDictionary **options) { int16_t *samples; AVCodec *codec; @@ -2085,7 +2085,7 @@ static int try_decode_frame(AVStream *st, AVPacket *avpkt) codec = avcodec_find_decoder(st->codec->codec_id); if (!codec) return -1; - ret = avcodec_open(st->codec, codec); + ret = avcodec_open2(st->codec, codec, options); if (ret < 0) return ret; } @@ -2204,12 +2204,20 @@ static int tb_unreliable(AVCodecContext *c){ return 0; } +#if FF_API_FORMAT_PARAMETERS int av_find_stream_info(AVFormatContext *ic) { + return avformat_find_stream_info(ic, NULL); +} +#endif + +int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options) +{ int i, count, ret, read_size, j; AVStream *st; AVPacket pkt1, *pkt; int64_t old_offset = avio_tell(ic->pb); + int orig_nb_streams = ic->nb_streams; // new streams might appear, no options for those for(i=0;i<ic->nb_streams;i++) { AVCodec *codec; @@ -2235,12 +2243,12 @@ int av_find_stream_info(AVFormatContext *ic) /* Ensure that subtitle_header is properly set. */ if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE && codec && !st->codec->codec) - avcodec_open(st->codec, codec); + avcodec_open2(st->codec, codec, options ? &options[i] : NULL); //try to just open decoders, in case this is enough to get parameters if(!has_codec_parameters(st->codec)){ if (codec && !st->codec->codec) - avcodec_open(st->codec, codec); + avcodec_open2(st->codec, codec, options ? &options[i] : NULL); } } @@ -2383,7 +2391,7 @@ int av_find_stream_info(AVFormatContext *ic) !has_decode_delay_been_guessed(st) || (st->codec->codec && st->codec->codec->capabilities & CODEC_CAP_CHANNEL_CONF)) - try_decode_frame(st, pkt); + try_decode_frame(st, pkt, (options && i <= orig_nb_streams )? &options[i] : NULL); st->codec_info_nb_frames++; count++; |