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Add RMStream object as function argument to public functions so that non-.rm

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AVStreams can be used to call these public rmdec.c functions as well, as is
the case for RDT/RTSP streams. See mailinglist discussion in "[PATCH] rdt.c:
don't reuse the same AVStream in both RTSP and RM demuxer" thread.

Originally committed as revision 16366 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ronald S. Bultje 2008-12-28 00:21:11 +00:00
parent ba61472911
commit 886e89d0d0
3 changed files with 27 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
libavformat/rdt.c
View File

@ -81,6 +81,7 @@ ff_rdt_parse_close(RDTDemuxContext *s)
struct PayloadContext {
AVFormatContext *rmctx;
RMStream *rmst[MAX_STREAMS];
uint8_t *mlti_data;
unsigned int mlti_data_size;
char buffer[RTP_MAX_PACKET_LENGTH + FF_INPUT_BUFFER_PADDING_SIZE];
@ -174,7 +175,7 @@ rdt_load_mdpr (PayloadContext *rdt, AVStream *st, int rule_nr)
size = rdt->mlti_data_size;
url_fseek(&pb, 0, SEEK_SET);
}
if (ff_rm_read_mdpr_codecdata(rdt->rmctx, &pb, st, size) < 0)
if (ff_rm_read_mdpr_codecdata(rdt->rmctx, &pb, st, rdt->rmst[0], size) < 0)
return -1;
return 0;
@ -301,7 +302,7 @@ rdt_parse_packet (PayloadContext *rdt, AVStream *st,
init_put_byte(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
flags = (flags & PKT_FLAG_KEY) ? 2 : 0;
res = ff_rm_parse_packet (rdt->rmctx, &pb, st, len, pkt,
res = ff_rm_parse_packet (rdt->rmctx, &pb, st, rdt->rmst[0], len, pkt,
&seq, &flags, timestamp);
pos = url_ftell(&pb);
if (res < 0)
@ -314,7 +315,7 @@ rdt_parse_packet (PayloadContext *rdt, AVStream *st,
NULL, NULL, NULL, NULL);
}
} else {
ff_rm_retrieve_cache (rdt->rmctx, rdt->rmctx->pb, st, pkt);
ff_rm_retrieve_cache (rdt->rmctx, rdt->rmctx->pb, st, rdt->rmst[0], pkt);
if (rdt->audio_pkt_cnt[st->id] == 0 &&
st->codec->codec_id == CODEC_ID_AAC)
av_freep(&rdt->rmctx->pb);
@ -426,6 +427,7 @@ rdt_new_extradata (void)
PayloadContext *rdt = av_mallocz(sizeof(PayloadContext));
av_open_input_stream(&rdt->rmctx, NULL, "", &rdt_demuxer, NULL);
rdt->rmst[0] = ff_rm_alloc_rmstream();
return rdt;
}
@ -433,6 +435,7 @@ rdt_new_extradata (void)
static void
rdt_free_extradata (PayloadContext *rdt)
{
ff_rm_free_rmstream(rdt->rmst[0]);
if (rdt->rmctx)
av_close_input_stream(rdt->rmctx);
av_freep(&rdt->mlti_data);

10
libavformat/rm.h
View File

@ -40,11 +40,13 @@ extern AVInputFormat rdt_demuxer;
* @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 rst real-specific stream information
* @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, ByteIOContext *pb,
AVStream *st, int codec_data_size);
AVStream *st, RMStream *rst,
int codec_data_size);
/**
* Parse one rm-stream packet from the input bytestream.
@ -52,6 +54,7 @@ int ff_rm_read_mdpr_codecdata (AVFormatContext *s, ByteIOContext *pb,
* @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 rst Real-specific stream information
* @param len packet length to read from the input
* @param pkt packet location to store the parsed packet data
* @param seq pointer to an integer containing the sequence number, may be
@ -64,7 +67,7 @@ int ff_rm_read_mdpr_codecdata (AVFormatContext *s, ByteIOContext *pb,
* errno codes on error
*/
int ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb,
AVStream *st, int len,
AVStream *st, RMStream *rst, int len,
AVPacket *pkt, int *seq, int *flags, int64_t *ts);
/**
@ -78,9 +81,10 @@ int ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb,
* @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 rst Real-specific stream information
* @param pkt location to store the packet data
*/
void ff_rm_retrieve_cache (AVFormatContext *s, ByteIOContext *pb,
AVStream *st, AVPacket *pkt);
AVStream *st, RMStream *rst, AVPacket *pkt);
#endif /* AVFORMAT_RM_H */

30
libavformat/rmdec.c
View File

@ -87,9 +87,8 @@ void ff_rm_free_rmstream (RMStream *rms)
}
static int rm_read_audio_stream_info(AVFormatContext *s, ByteIOContext *pb,
AVStream *st, int read_all)
AVStream *st, RMStream *ast, int read_all)
{
RMStream *ast = st->priv_data;
char buf[256];
uint32_t version;
@ -228,20 +227,18 @@ static int rm_read_audio_stream_info(AVFormatContext *s, ByteIOContext *pb,
int
ff_rm_read_mdpr_codecdata (AVFormatContext *s, ByteIOContext *pb,
AVStream *st, int codec_data_size)
AVStream *st, RMStream *rst, int codec_data_size)
{
unsigned int v;
int size;
int64_t codec_pos;
RMStream *rst;
st->priv_data = rst = ff_rm_alloc_rmstream();
av_set_pts_info(st, 64, 1, 1000);
codec_pos = url_ftell(pb);
v = get_be32(pb);
if (v == MKTAG(0xfd, 'a', 'r', '.')) {
/* ra type header */
if (rm_read_audio_stream_info(s, pb, st, 0))
if (rm_read_audio_stream_info(s, pb, st, rst, 0))
return -1;
} else {
int fps, fps2;
@ -308,7 +305,8 @@ 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, s->pb, st, 1);
st->priv_data = ff_rm_alloc_rmstream();
return rm_read_audio_stream_info(s, s->pb, st, st->priv_data, 1);
}
static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap)
@ -390,7 +388,9 @@ 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, s->pb, st, get_be32(pb)) < 0)
st->priv_data = ff_rm_alloc_rmstream();
if (ff_rm_read_mdpr_codecdata(s, s->pb, st, st->priv_data,
get_be32(pb)) < 0)
return -1;
break;
case MKTAG('D', 'A', 'T', 'A'):
@ -584,18 +584,16 @@ rm_ac3_swap_bytes (AVStream *st, AVPacket *pkt)
int
ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb,
AVStream *st, int len, AVPacket *pkt,
AVStream *st, RMStream *ast, int len, AVPacket *pkt,
int *seq, int *flags, int64_t *timestamp)
{
RMDemuxContext *rm = s->priv_data;
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
rm->current_stream= st->id;
if(rm_assemble_video_frame(s, pb, rm, st->priv_data, pkt, len) == 1)
if(rm_assemble_video_frame(s, pb, rm, ast, pkt, len) == 1)
return -1; //got partial frame
} else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
RMStream *ast = st->priv_data;
if ((st->codec->codec_id == CODEC_ID_RA_288) ||
(st->codec->codec_id == CODEC_ID_COOK) ||
(st->codec->codec_id == CODEC_ID_ATRAC3) ||
@ -685,10 +683,9 @@ ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb,
void
ff_rm_retrieve_cache (AVFormatContext *s, ByteIOContext *pb,
AVStream *st, AVPacket *pkt)
AVStream *st, RMStream *ast, AVPacket *pkt)
{
RMDemuxContext *rm = s->priv_data;
RMStream *ast = st->priv_data;
assert (rm->audio_pkt_cnt > 0);
@ -717,7 +714,7 @@ 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, s->pb, st, pkt);
ff_rm_retrieve_cache(s, s->pb, st, st->priv_data, pkt);
} else if (rm->old_format) {
RMStream *ast;
@ -756,7 +753,8 @@ resync:
return AVERROR(EIO);
st = s->streams[i];
if (ff_rm_parse_packet (s, s->pb, st, len, pkt, &seq, &flags, &timestamp) < 0)
if (ff_rm_parse_packet (s, s->pb, st, st->priv_data, len, pkt,
&seq, &flags, &timestamp) < 0)
goto resync;
if((flags&2) && (seq&0x7F) == 1)