From fcc995a533ddf0d892348c76244bd667949a3223 Mon Sep 17 00:00:00 2001 From: "Ronald S. Bultje" Date: Mon, 17 Nov 2008 14:20:00 +0000 Subject: [PATCH] Add ByteIOContext argument to public ff_rm_* functions so that we can specify the data source as function argument instead of in s->pb before calling the function. Discussed in ML thread "[PATCH] fix small memleak in rdt.c". Originally committed as revision 15849 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/rdt.c | 15 ++++++--------- libavformat/rm.h | 12 +++++++++--- libavformat/rmdec.c | 33 ++++++++++++++++----------------- 3 files changed, 31 insertions(+), 29 deletions(-) diff --git a/libavformat/rdt.c b/libavformat/rdt.c index 0982d62a1f4..9561859678d 100644 --- a/libavformat/rdt.c +++ b/libavformat/rdt.c @@ -159,8 +159,7 @@ rdt_load_mdpr (PayloadContext *rdt, AVStream *st, int rule_nr) size = rdt->mlti_data_size; url_fseek(pb, 0, SEEK_SET); } - rdt->rmctx->pb = pb; - if (ff_rm_read_mdpr_codecdata(rdt->rmctx, st, size) < 0) + if (ff_rm_read_mdpr_codecdata(rdt->rmctx, pb, st, size) < 0) return -1; url_close_buf(pb); @@ -259,7 +258,7 @@ rdt_parse_packet (PayloadContext *rdt, AVStream *st, const uint8_t *buf, int len, int flags) { int seq = 1, res; - ByteIOContext *pb = rdt->rmctx->pb; + ByteIOContext *pb; RMContext *rm = rdt->rmctx->priv_data; if (rm->audio_pkt_cnt == 0) { @@ -267,8 +266,7 @@ rdt_parse_packet (PayloadContext *rdt, AVStream *st, url_open_buf (&pb, buf, len, URL_RDONLY); flags = (flags & PKT_FLAG_KEY) ? 2 : 0; - rdt->rmctx->pb = pb; - res = ff_rm_parse_packet (rdt->rmctx, st, len, pkt, + res = ff_rm_parse_packet (rdt->rmctx, pb, st, len, pkt, &seq, &flags, timestamp); pos = url_ftell(pb); url_close_buf (pb); @@ -277,14 +275,13 @@ rdt_parse_packet (PayloadContext *rdt, AVStream *st, if (rm->audio_pkt_cnt > 0 && st->codec->codec_id == CODEC_ID_AAC) { memcpy (rdt->buffer, buf + pos, len - pos); - url_open_buf (&pb, rdt->buffer, len - pos, URL_RDONLY); - rdt->rmctx->pb = pb; + url_open_buf (&rdt->rmctx->pb, rdt->buffer, len - pos, URL_RDONLY); } } else { - ff_rm_retrieve_cache (rdt->rmctx, st, pkt); + ff_rm_retrieve_cache (rdt->rmctx, rdt->rmctx->pb, st, pkt); if (rm->audio_pkt_cnt == 0 && st->codec->codec_id == CODEC_ID_AAC) - url_close_buf (pb); + url_close_buf (rdt->rmctx->pb); } pkt->stream_index = st->index; pkt->pts = *timestamp; diff --git a/libavformat/rm.h b/libavformat/rm.h index 4ad1c30fefa..01c0d1681e5 100644 --- a/libavformat/rm.h +++ b/libavformat/rm.h @@ -71,17 +71,20 @@ extern AVInputFormat rdt_demuxer; * parameters. * * @param s context containing RMContext and ByteIOContext for stream reading + * @param pb context to read the data from * @param st the stream that the MDPR chunk belongs to and where to store the * parameters read from the chunk into * @param codec_data_size size of the MDPR chunk * @return 0 on success, errno codes on error */ -int ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVStream *st, int codec_data_size); +int ff_rm_read_mdpr_codecdata (AVFormatContext *s, ByteIOContext *pb, + AVStream *st, int codec_data_size); /** * Parse one rm-stream packet from the input bytestream. * * @param s context containing RMContext and ByteIOContext for stream reading + * @param pb context to read the data from * @param st stream to which the packet to be read belongs * @param len packet length to read from the input * @param pkt packet location to store the parsed packet data @@ -92,7 +95,8 @@ int ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVStream *st, int codec_data_ * @param ts pointer to timestamp, may be updated * @return 0 on success, errno codes on error */ -int ff_rm_parse_packet (AVFormatContext *s, AVStream *st, int len, +int ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb, + AVStream *st, int len, AVPacket *pkt, int *seq, int *flags, int64_t *ts); /** @@ -104,9 +108,11 @@ int ff_rm_parse_packet (AVFormatContext *s, AVStream *st, int len, * of those packets can be retrieved sequentially. * * @param s context containing RMContext and ByteIOContext for stream reading + * @param pb context to read the data from * @param st stream that this packet belongs to * @param pkt location to store the packet data */ -void ff_rm_retrieve_cache (AVFormatContext *s, AVStream *st, AVPacket *pkt); +void ff_rm_retrieve_cache (AVFormatContext *s, ByteIOContext *pb, + AVStream *st, AVPacket *pkt); #endif /* AVFORMAT_RM_H */ diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c index 9db09e1ed97..d9c508f71d6 100644 --- a/libavformat/rmdec.c +++ b/libavformat/rmdec.c @@ -47,11 +47,10 @@ static void get_str8(ByteIOContext *pb, char *buf, int buf_size) get_strl(pb, buf, buf_size, get_byte(pb)); } -static int rm_read_audio_stream_info(AVFormatContext *s, AVStream *st, - int read_all) +static int rm_read_audio_stream_info(AVFormatContext *s, ByteIOContext *pb, + AVStream *st, int read_all) { RMContext *rm = s->priv_data; - ByteIOContext *pb = s->pb; char buf[256]; uint32_t version; int i; @@ -196,9 +195,9 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVStream *st, } int -ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVStream *st, int codec_data_size) +ff_rm_read_mdpr_codecdata (AVFormatContext *s, ByteIOContext *pb, + AVStream *st, int codec_data_size) { - ByteIOContext *pb = s->pb; unsigned int v; int size; int64_t codec_pos; @@ -208,7 +207,7 @@ ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVStream *st, int codec_data_size v = get_be32(pb); if (v == MKTAG(0xfd, 'a', 'r', '.')) { /* ra type header */ - if (rm_read_audio_stream_info(s, st, 0)) + if (rm_read_audio_stream_info(s, pb, st, 0)) return -1; } else { int fps, fps2; @@ -275,7 +274,7 @@ static int rm_read_header_old(AVFormatContext *s, AVFormatParameters *ap) st = av_new_stream(s, 0); if (!st) return -1; - return rm_read_audio_stream_info(s, st, 1); + return rm_read_audio_stream_info(s, s->pb, st, 1); } static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap) @@ -357,7 +356,7 @@ static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap) get_str8(pb, buf, sizeof(buf)); /* desc */ get_str8(pb, buf, sizeof(buf)); /* mimetype */ st->codec->codec_type = CODEC_TYPE_DATA; - if (ff_rm_read_mdpr_codecdata(s, st, get_be32(pb)) < 0) + if (ff_rm_read_mdpr_codecdata(s, s->pb, st, get_be32(pb)) < 0) return -1; break; case MKTAG('D', 'A', 'T', 'A'): @@ -452,9 +451,9 @@ skip: return -1; } -static int rm_assemble_video_frame(AVFormatContext *s, RMContext *rm, AVPacket *pkt, int len) +static int rm_assemble_video_frame(AVFormatContext *s, ByteIOContext *pb, + RMContext *rm, AVPacket *pkt, int len) { - ByteIOContext *pb = s->pb; int hdr, seq, pic_num, len2, pos; int type; @@ -550,15 +549,15 @@ rm_ac3_swap_bytes (AVStream *st, AVPacket *pkt) } int -ff_rm_parse_packet (AVFormatContext *s, AVStream *st, int len, AVPacket *pkt, +ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb, + AVStream *st, int len, AVPacket *pkt, int *seq, int *flags, int64_t *timestamp) { - ByteIOContext *pb = s->pb; RMContext *rm = s->priv_data; if (st->codec->codec_type == CODEC_TYPE_VIDEO) { rm->current_stream= st->id; - if(rm_assemble_video_frame(s, rm, pkt, len) == 1) + if(rm_assemble_video_frame(s, pb, rm, pkt, len) == 1) return -1; //got partial frame } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) { if ((st->codec->codec_id == CODEC_ID_RA_288) || @@ -649,9 +648,9 @@ ff_rm_parse_packet (AVFormatContext *s, AVStream *st, int len, AVPacket *pkt, } void -ff_rm_retrieve_cache (AVFormatContext *s, AVStream *st, AVPacket *pkt) +ff_rm_retrieve_cache (AVFormatContext *s, ByteIOContext *pb, + AVStream *st, AVPacket *pkt) { - ByteIOContext *pb = s->pb; RMContext *rm = s->priv_data; assert (rm->audio_pkt_cnt > 0); @@ -681,7 +680,7 @@ static int rm_read_packet(AVFormatContext *s, AVPacket *pkt) if (rm->audio_pkt_cnt) { // If there are queued audio packet return them first st = s->streams[rm->audio_stream_num]; - ff_rm_retrieve_cache(s, st, pkt); + ff_rm_retrieve_cache(s, s->pb, st, pkt); } else if (rm->old_format) { st = s->streams[0]; if (st->codec->codec_id == CODEC_ID_RA_288) { @@ -717,7 +716,7 @@ resync: return AVERROR(EIO); st = s->streams[i]; - if (ff_rm_parse_packet (s, st, len, pkt, &seq, &flags, ×tamp) < 0) + if (ff_rm_parse_packet (s, s->pb, st, len, pkt, &seq, &flags, ×tamp) < 0) goto resync; if((flags&2) && (seq&0x7F) == 1) -- 2.39.2