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limit raw packet buffer size used for codec probing

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Originally committed as revision 19272 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2009-06-25 18:48:57 +00:00
parent 57f6d52a22
commit af122d6a80
2 changed files with 19 additions and 3 deletions
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11
libavformat/avformat.h
View File

@ -22,8 +22,8 @@
#define AVFORMAT_AVFORMAT_H
#define LIBAVFORMAT_VERSION_MAJOR 52
#define LIBAVFORMAT_VERSION_MINOR 34
#define LIBAVFORMAT_VERSION_MICRO 1
#define LIBAVFORMAT_VERSION_MINOR 35
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
@ -638,6 +638,13 @@ typedef struct AVFormatContext {
struct AVPacketList *packet_buffer_end;
AVMetadata *metadata;
/**
* Remaining size available for raw_packet_buffer, in bytes.
* NOT PART OF PUBLIC API
*/
#define RAW_PACKET_BUFFER_SIZE 32000
int raw_packet_buffer_remaining_size;
} AVFormatContext;
typedef struct AVPacketList {

11
libavformat/utils.c
View File

@ -401,6 +401,8 @@ int av_open_input_stream(AVFormatContext **ic_ptr,
ff_metadata_demux_compat(ic);
#endif
ic->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
*ic_ptr = ic;
return 0;
fail:
@ -532,8 +534,13 @@ int av_read_packet(AVFormatContext *s, AVPacket *pkt)
if (pktl) {
*pkt = pktl->pkt;
if(s->streams[pkt->stream_index]->codec->codec_id != CODEC_ID_PROBE ||
!s->streams[pkt->stream_index]->probe_packets){
!s->streams[pkt->stream_index]->probe_packets ||
s->raw_packet_buffer_remaining_size < pkt->size){
AVProbeData *pd = &s->streams[pkt->stream_index]->probe_data;
av_freep(&pd->buf);
pd->buf_size = 0;
s->raw_packet_buffer = pktl->next;
s->raw_packet_buffer_remaining_size += pkt->size;
av_free(pktl);
return 0;
}
@ -567,6 +574,7 @@ int av_read_packet(AVFormatContext *s, AVPacket *pkt)
return ret;
add_to_pktbuf(&s->raw_packet_buffer, pkt, &s->raw_packet_buffer_end);
s->raw_packet_buffer_remaining_size -= pkt->size;
if(st->codec->codec_id == CODEC_ID_PROBE){
AVProbeData *pd = &st->probe_data;
@ -1102,6 +1110,7 @@ static void flush_packet_queue(AVFormatContext *s)
av_free_packet(&pktl->pkt);
av_free(pktl);
}
s->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
}
/*******************************************************/