From 569129a6dc503379c0486008224dfaff8f0ee81f Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Sat, 18 Jun 2011 11:19:27 +0200 Subject: lavf: add avformat_new_stream as a replacement for av_new_stream. It takes a codec parameter, thus enabling codec-specific defaults. --- doc/APIchanges | 3 +++ libavformat/avformat.h | 21 +++++++++++++++++++++ libavformat/utils.c | 13 +++++++++++-- libavformat/version.h | 7 +++++-- 4 files changed, 40 insertions(+), 4 deletions(-) diff --git a/doc/APIchanges b/doc/APIchanges index c4557f06a0..bd55cb0172 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -13,6 +13,9 @@ libavutil: 2011-04-18 API changes, most recent first: +2011-10-xx - xxxxxxx - lavf 53.10.0 + Add avformat_new_stream(). Deprecate av_new_stream(). + 2011-xx-xx - xxxxxxx - lavf 53.9.0 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag. diff --git a/libavformat/avformat.h b/libavformat/avformat.h index 4e7e883eb5..65f66d84d3 100644 --- a/libavformat/avformat.h +++ b/libavformat/avformat.h @@ -1311,6 +1311,7 @@ void av_close_input_file(AVFormatContext *s); */ void avformat_free_context(AVFormatContext *s); +#if FF_API_NEW_STREAM /** * Add a new stream to a media file. * @@ -1321,7 +1322,27 @@ void avformat_free_context(AVFormatContext *s); * @param s media file handle * @param id file-format-dependent stream ID */ +attribute_deprecated AVStream *av_new_stream(AVFormatContext *s, int id); +#endif + +/** + * Add a new stream to a media file. + * + * When demuxing, it is called by the demuxer in read_header(). If the + * flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also + * be called in read_packet(). + * + * When muxing, should be called by the user before avformat_write_header(). + * + * @param c If non-NULL, the AVCodecContext corresponding to the new stream + * will be initialized to use this codec. This is needed for e.g. codec-specific + * defaults to be set, so codec should be provided if it is known. + * + * @return newly created stream or NULL on error. + */ +AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c); + AVProgram *av_new_program(AVFormatContext *s, int id); /** diff --git a/libavformat/utils.c b/libavformat/utils.c index 6393b62615..9735d455d9 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -2657,7 +2657,17 @@ void av_close_input_file(AVFormatContext *s) avio_close(pb); } +#if FF_API_NEW_STREAM AVStream *av_new_stream(AVFormatContext *s, int id) +{ + AVStream *st = avformat_new_stream(s, NULL); + if (st) + st->id = id; + return st; +} +#endif + +AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c) { AVStream *st; int i; @@ -2678,13 +2688,12 @@ AVStream *av_new_stream(AVFormatContext *s, int id) return NULL; } - st->codec = avcodec_alloc_context3(NULL); + st->codec = avcodec_alloc_context3(c); if (s->iformat) { /* no default bitrate if decoding */ st->codec->bit_rate = 0; } st->index = s->nb_streams; - st->id = id; st->start_time = AV_NOPTS_VALUE; st->duration = AV_NOPTS_VALUE; /* we set the current DTS to 0 so that formats without any timestamps diff --git a/libavformat/version.h b/libavformat/version.h index db20bd6658..9de30ea55b 100644 --- a/libavformat/version.h +++ b/libavformat/version.h @@ -24,8 +24,8 @@ #include "libavutil/avutil.h" #define LIBAVFORMAT_VERSION_MAJOR 53 -#define LIBAVFORMAT_VERSION_MINOR 9 -#define LIBAVFORMAT_VERSION_MICRO 1 +#define LIBAVFORMAT_VERSION_MINOR 10 +#define LIBAVFORMAT_VERSION_MICRO 0 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ LIBAVFORMAT_VERSION_MINOR, \ @@ -95,5 +95,8 @@ #ifndef FF_API_RTSP_URL_OPTIONS #define FF_API_RTSP_URL_OPTIONS (LIBAVFORMAT_VERSION_MAJOR < 54) #endif +#ifndef FF_API_NEW_STREAM +#define FF_API_NEW_STREAM (LIBAVFORMAT_VERSION_MAJOR < 54) +#endif #endif /* AVFORMAT_VERSION_H */ -- cgit v1.2.3