/*
- * MPEG1/2 mux/demux
+ * MPEG1/2 muxer and demuxer
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
#include "bitstream.h"
+#include "fifo.h"
#define MAX_PAYLOAD_SIZE 4096
//#define DEBUG_SEEK
} PacketDesc;
typedef struct {
- FifoBuffer fifo;
+ AVFifoBuffer fifo;
uint8_t id;
int max_buffer_size; /* in bytes */
int buffer_index;
int packet_number;
uint8_t lpcm_header[3];
int lpcm_align;
- uint8_t *fifo_iframe_ptr;
+ int bytes_to_iframe;
int align_iframe;
int64_t vobu_start_pts;
} StreamInfo;
static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 };
#ifdef CONFIG_MUXERS
-static AVOutputFormat mpeg1system_mux;
-static AVOutputFormat mpeg1vcd_mux;
-static AVOutputFormat mpeg2vob_mux;
-static AVOutputFormat mpeg2svcd_mux;
-static AVOutputFormat mpeg2dvd_mux;
+AVOutputFormat mpeg1system_muxer;
+AVOutputFormat mpeg1vcd_muxer;
+AVOutputFormat mpeg2vob_muxer;
+AVOutputFormat mpeg2svcd_muxer;
+AVOutputFormat mpeg2dvd_muxer;
static int put_pack_header(AVFormatContext *ctx,
uint8_t *buf, int64_t timestamp)
int video_bitrate;
s->packet_number = 0;
- s->is_vcd = (ctx->oformat == &mpeg1vcd_mux);
- s->is_svcd = (ctx->oformat == &mpeg2svcd_mux);
- s->is_mpeg2 = (ctx->oformat == &mpeg2vob_mux || ctx->oformat == &mpeg2svcd_mux || ctx->oformat == &mpeg2dvd_mux);
- s->is_dvd = (ctx->oformat == &mpeg2dvd_mux);
+ s->is_vcd = (ctx->oformat == &mpeg1vcd_muxer);
+ s->is_svcd = (ctx->oformat == &mpeg2svcd_muxer);
+ s->is_mpeg2 = (ctx->oformat == &mpeg2vob_muxer || ctx->oformat == &mpeg2svcd_muxer || ctx->oformat == &mpeg2dvd_muxer);
+ s->is_dvd = (ctx->oformat == &mpeg2dvd_muxer);
if(ctx->packet_size)
s->packet_size = ctx->packet_size;
default:
return -1;
}
- fifo_init(&stream->fifo, 16);
+ av_fifo_init(&stream->fifo, 16);
}
bitrate = 0;
audio_bitrate = 0;
}
} else if (s->is_dvd) {
if (stream->align_iframe || s->packet_number == 0){
- int bytes_to_iframe;
- int PES_bytes_to_fill;
- if (stream->fifo_iframe_ptr >= stream->fifo.rptr) {
- bytes_to_iframe = stream->fifo_iframe_ptr - stream->fifo.rptr;
- } else {
- bytes_to_iframe = (stream->fifo.end - stream->fifo.rptr) + (stream->fifo_iframe_ptr - stream->fifo.buffer);
- }
- PES_bytes_to_fill = s->packet_size - size - 10;
+ int PES_bytes_to_fill = s->packet_size - size - 10;
if (pts != AV_NOPTS_VALUE) {
if (dts != pts)
PES_bytes_to_fill -= 5;
}
- if (bytes_to_iframe == 0 || s->packet_number == 0) {
+ if (stream->bytes_to_iframe == 0 || s->packet_number == 0) {
size = put_system_header(ctx, buf_ptr, 0);
buf_ptr += size;
size = buf_ptr - buffer;
s->last_scr= scr;
buf_ptr += size;
/* GOP Start */
- } else if (bytes_to_iframe < PES_bytes_to_fill) {
- pad_packet_bytes = PES_bytes_to_fill - bytes_to_iframe;
+ } else if (stream->bytes_to_iframe < PES_bytes_to_fill) {
+ pad_packet_bytes = PES_bytes_to_fill - stream->bytes_to_iframe;
}
}
} else {
startcode = 0x100 + id;
}
- stuffing_size = payload_size - fifo_size(&stream->fifo, stream->fifo.rptr);
+ stuffing_size = payload_size - av_fifo_size(&stream->fifo);
// first byte doesnt fit -> reset pts/dts + stuffing
if(payload_size <= trailer_size && pts != AV_NOPTS_VALUE){
}
/* output data */
- if(put_fifo(&ctx->pb, &stream->fifo, payload_size - stuffing_size, &stream->fifo.rptr) < 0)
+ if(av_fifo_generic_read(&stream->fifo, payload_size - stuffing_size, &put_buffer, &ctx->pb) < 0)
return -1;
+ stream->bytes_to_iframe -= payload_size - stuffing_size;
}else{
payload_size=
stuffing_size= 0;
for(i=0; i<ctx->nb_streams; i++){
AVStream *st = ctx->streams[i];
StreamInfo *stream = st->priv_data;
- const int avail_data= fifo_size(&stream->fifo, stream->fifo.rptr);
+ const int avail_data= av_fifo_size(&stream->fifo);
const int space= stream->max_buffer_size - stream->buffer_index;
int rel_space= 1024*space / stream->max_buffer_size;
PacketDesc *next_pkt= stream->premux_packet;
st = ctx->streams[best_i];
stream = st->priv_data;
- assert(fifo_size(&stream->fifo, stream->fifo.rptr) > 0);
+ assert(av_fifo_size(&stream->fifo) > 0);
assert(avail_space >= s->packet_size || ignore_constraints);
//av_log(ctx, AV_LOG_DEBUG, "dts:%f pts:%f scr:%f stream:%d\n", timestamp_packet->dts/90000.0, timestamp_packet->pts/90000.0, scr/90000.0, best_i);
es_size= flush_packet(ctx, best_i, timestamp_packet->pts, timestamp_packet->dts, scr, trailer_size);
}else{
- assert(fifo_size(&stream->fifo, stream->fifo.rptr) == trailer_size);
+ assert(av_fifo_size(&stream->fifo) == trailer_size);
es_size= flush_packet(ctx, best_i, AV_NOPTS_VALUE, AV_NOPTS_VALUE, scr, trailer_size);
}
stream->predecode_packet= pkt_desc;
stream->next_packet= &pkt_desc->next;
- fifo_realloc(&stream->fifo, fifo_size(&stream->fifo, NULL) + size + 1);
+ av_fifo_realloc(&stream->fifo, av_fifo_size(&stream->fifo) + size + 1);
if (s->is_dvd){
if (is_iframe && (s->packet_number == 0 || (pts - stream->vobu_start_pts >= 36000))) { // min VOBU length 0.4 seconds (mpucoder)
- stream->fifo_iframe_ptr = stream->fifo.wptr;
+ stream->bytes_to_iframe = av_fifo_size(&stream->fifo);
stream->align_iframe = 1;
stream->vobu_start_pts = pts;
} else {
}
}
- fifo_write(&stream->fifo, buf, size, &stream->fifo.wptr);
+ av_fifo_write(&stream->fifo, buf, size);
for(;;){
int ret= output_packet(ctx, 0);
for(i=0;i<ctx->nb_streams;i++) {
stream = ctx->streams[i]->priv_data;
- assert(fifo_size(&stream->fifo, stream->fifo.rptr) == 0);
- fifo_free(&stream->fifo);
+ assert(av_fifo_size(&stream->fifo) == 0);
+ av_fifo_free(&stream->fifo);
}
return 0;
}
#define MAX_SYNC_SIZE 100000
+static int cdxa_probe(AVProbeData *p)
+{
+ /* check file header */
+ if (p->buf_size <= 32)
+ return 0;
+ if (p->buf[0] == 'R' && p->buf[1] == 'I' &&
+ p->buf[2] == 'F' && p->buf[3] == 'F' &&
+ p->buf[8] == 'C' && p->buf[9] == 'D' &&
+ p->buf[10] == 'X' && p->buf[11] == 'A')
+ return AVPROBE_SCORE_MAX;
+ else
+ return 0;
+}
+
static int mpegps_probe(AVProbeData *p)
{
uint32_t code= -1;
int sys=0, pspack=0, priv1=0, vid=0, audio=0;
int i;
+ int score=0;
+
+ score = cdxa_probe(p);
+ if (score > 0) return score;
+ /* Search for MPEG stream */
for(i=0; i<p->buf_size; i++){
code = (code<<8) + p->buf[i];
if ((code & 0xffffff00) == 0x100) {
else if((code & 0xe0) == AUDIO_ID) audio++;
}
}
+
+ if(vid || audio) /* invalid VDR files nd short PES streams */
+ score= AVPROBE_SCORE_MAX/4;
+
+//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d %d\n", sys, priv1, pspack,vid, audio);
if(sys && sys*9 <= pspack*10)
return AVPROBE_SCORE_MAX/2+2; // +1 for .mpg
if((priv1 || vid || audio) && (priv1+vid+audio)*9 <= pspack*10)
return AVPROBE_SCORE_MAX/2+2; // +1 for .mpg
- if((!!vid ^ !!audio) && !sys && !pspack) /* PES stream */
+ if((!!vid ^ !!audio) && (audio+vid > 1) && !sys && !pspack) /* PES stream */
return AVPROBE_SCORE_MAX/2+2;
- if(vid || audio) /* invalid VDR files */
- return AVPROBE_SCORE_MAX/2+2;
- return 0;
+
+ //02-Penguin.flac has sys:0 priv1:0 pspack:0 vid:0 audio:1
+ return score;
}
typedef struct MpegDemuxContext {
- int header_state;
+ int32_t header_state;
unsigned char psm_es_type[256];
} MpegDemuxContext;
}
static int find_next_start_code(ByteIOContext *pb, int *size_ptr,
- uint32_t *header_state)
+ int32_t *header_state)
{
unsigned int state, v;
int val, n;
m->header_state = 0xff;
size = MAX_SYNC_SIZE;
startcode = find_next_start_code(&s->pb, &size, &m->header_state);
- //printf("startcode=%x pos=0x%Lx\n", startcode, url_ftell(&s->pb));
+ //printf("startcode=%x pos=0x%"PRIx64"\n", startcode, url_ftell(&s->pb));
if (startcode < 0)
return AVERROR_IO;
if (startcode == PACK_START_CODE)
pos = *ppos;
#ifdef DEBUG_SEEK
- printf("read_dts: pos=0x%llx next=%d -> ", pos, find_next);
+ printf("read_dts: pos=0x%"PRIx64" next=%d -> ", pos, find_next);
#endif
url_fseek(&s->pb, pos, SEEK_SET);
for(;;) {
url_fskip(&s->pb, len);
}
#ifdef DEBUG_SEEK
- printf("pos=0x%llx dts=0x%llx %0.3f\n", pos, dts, dts / 90000.0);
+ printf("pos=0x%"PRIx64" dts=0x%"PRIx64" %0.3f\n", pos, dts, dts / 90000.0);
#endif
*ppos = pos;
return dts;
}
-#ifdef CONFIG_MUXERS
-static AVOutputFormat mpeg1system_mux = {
+#ifdef CONFIG_MPEG1SYSTEM_MUXER
+AVOutputFormat mpeg1system_muxer = {
"mpeg",
"MPEG1 System format",
"video/mpeg",
mpeg_mux_write_packet,
mpeg_mux_end,
};
-
-static AVOutputFormat mpeg1vcd_mux = {
+#endif
+#ifdef CONFIG_MPEG1VCD_MUXER
+AVOutputFormat mpeg1vcd_muxer = {
"vcd",
"MPEG1 System format (VCD)",
"video/mpeg",
mpeg_mux_write_packet,
mpeg_mux_end,
};
-
-static AVOutputFormat mpeg2vob_mux = {
+#endif
+#ifdef CONFIG_MPEG2VOB_MUXER
+AVOutputFormat mpeg2vob_muxer = {
"vob",
"MPEG2 PS format (VOB)",
"video/mpeg",
mpeg_mux_write_packet,
mpeg_mux_end,
};
+#endif
/* Same as mpeg2vob_mux except that the pack size is 2324 */
-static AVOutputFormat mpeg2svcd_mux = {
+#ifdef CONFIG_MPEG2SVCD_MUXER
+AVOutputFormat mpeg2svcd_muxer = {
"svcd",
"MPEG2 PS format (VOB)",
"video/mpeg",
mpeg_mux_write_packet,
mpeg_mux_end,
};
+#endif
/* Same as mpeg2vob_mux except the 'is_dvd' flag is set to produce NAV pkts */
-static AVOutputFormat mpeg2dvd_mux = {
+#ifdef CONFIG_MPEG2DVD_MUXER
+AVOutputFormat mpeg2dvd_muxer = {
"dvd",
"MPEG2 PS format (DVD VOB)",
"video/mpeg",
mpeg_mux_write_packet,
mpeg_mux_end,
};
+#endif
-#endif //CONFIG_MUXERS
-
-AVInputFormat mpegps_demux = {
+#ifdef CONFIG_MPEGPS_DEMUXER
+AVInputFormat mpegps_demuxer = {
"mpeg",
"MPEG PS format",
sizeof(MpegDemuxContext),
mpegps_read_dts,
.flags = AVFMT_SHOW_IDS,
};
-
-int mpegps_init(void)
-{
-#ifdef CONFIG_MUXERS
- av_register_output_format(&mpeg1system_mux);
- av_register_output_format(&mpeg1vcd_mux);
- av_register_output_format(&mpeg2vob_mux);
- av_register_output_format(&mpeg2svcd_mux);
- av_register_output_format(&mpeg2dvd_mux);
-#endif //CONFIG_MUXERS
- av_register_input_format(&mpegps_demux);
- return 0;
-}
+#endif
projects / ffmpeg / blobdiff