static int mtv_read_packet(AVFormatContext *s, AVPacket *pkt) { MTVDemuxContext *mtv = s->priv_data; ByteIOContext *pb = s->pb; int ret; #if !HAVE_BIGENDIAN int i; #endif if((url_ftell(pb) - s->data_offset + mtv->img_segment_size) % mtv->full_segment_size) { url_fskip(pb, MTV_AUDIO_PADDING_SIZE); ret = av_get_packet(pb, pkt, MTV_ASUBCHUNK_DATA_SIZE); if(ret != MTV_ASUBCHUNK_DATA_SIZE) return AVERROR(EIO); pkt->pos -= MTV_AUDIO_PADDING_SIZE; pkt->stream_index = AUDIO_SID; }else { ret = av_get_packet(pb, pkt, mtv->img_segment_size); if(ret != mtv->img_segment_size) return AVERROR(EIO); #if !HAVE_BIGENDIAN /* pkt->data is GGGRRRR BBBBBGGG * and we need RRRRRGGG GGGBBBBB * for PIX_FMT_RGB565 so here we * just swap bytes as they come */ for(i=0;i<mtv->img_segment_size/2;i++) *((uint16_t *)pkt->data+i) = bswap_16(*((uint16_t *)pkt->data+i)); #endif pkt->stream_index = VIDEO_SID; } return ret; }
static int mtv_read_packet(AVFormatContext *s, AVPacket *pkt) { MTVDemuxContext *mtv = s->priv_data; ByteIOContext *pb = s->pb; int ret; #if !HAVE_BIGENDIAN int i; #endif if((url_ftell(pb) - s->data_offset + mtv->img_segment_size) % mtv->full_segment_size) { url_fskip(pb, MTV_AUDIO_PADDING_SIZE); ret = av_get_packet(pb, pkt, MTV_ASUBCHUNK_DATA_SIZE); if(ret != MTV_ASUBCHUNK_DATA_SIZE) return AVERROR(EIO); pkt->pos -= MTV_AUDIO_PADDING_SIZE; pkt->stream_index = AUDIO_SID; }else { ret = av_get_packet(pb, pkt, mtv->img_segment_size); if(ret != mtv->img_segment_size) return AVERROR(EIO); #if !HAVE_BIGENDIAN   for(i=0;i<mtv->img_segment_size/2;i++) *((uint16_t *)pkt->data+i) = bswap_16(*((uint16_t *)pkt->data+i)); #endif pkt->stream_index = VIDEO_SID; } return ret; }