/*
- * "Real" compatible mux and demux.
+ * "Real" compatible muxer and demuxer.
* Copyright (c) 2000, 2001 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
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * 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"
/* in ms */
-#define BUFFER_DURATION 0
+#define BUFFER_DURATION 0
typedef struct {
int nb_packets;
int audio_stream_num; ///< Stream number for audio packets
int audio_pkt_cnt; ///< Output packet counter
int audio_framesize; /// Audio frame size from container
+ int sub_packet_lengths[16]; /// Length of each aac subpacket
} RMContext;
#ifdef CONFIG_MUXERS
}
}
-static void rv10_write_header(AVFormatContext *ctx,
+static void rv10_write_header(AVFormatContext *ctx,
int data_size, int index_pos)
{
RMContext *rm = ctx->priv_data;
if (url_is_streamed(s))
flags |= 4; /* live broadcast */
put_be16(s, flags);
-
+
/* comments */
put_tag(s,"CONT");
- size = strlen(ctx->title) + strlen(ctx->author) + strlen(ctx->copyright) +
+ size = strlen(ctx->title) + strlen(ctx->author) + strlen(ctx->copyright) +
strlen(ctx->comment) + 4 * 2 + 10;
put_be32(s,size);
put_be16(s,0);
put_str(s, ctx->author);
put_str(s, ctx->copyright);
put_str(s, ctx->comment);
-
+
for(i=0;i<ctx->nb_streams;i++) {
int codec_data_size;
stream = &rm->streams[i];
-
+
if (stream->enc->codec_type == CODEC_TYPE_AUDIO) {
desc = "The Audio Stream";
mimetype = "audio/x-pn-realaudio";
put_be32(s, stream->bit_rate); /* avg bit rate */
put_be32(s, stream->packet_max_size); /* max packet size */
if (stream->nb_packets > 0)
- packet_avg_size = stream->packet_total_size /
+ packet_avg_size = stream->packet_total_size /
stream->nb_packets;
else
packet_avg_size = 0;
put_str8(s, desc);
put_str8(s, mimetype);
put_be32(s, codec_data_size);
-
+
if (stream->enc->codec_type == CODEC_TYPE_AUDIO) {
int coded_frame_size, fscode, sample_rate;
sample_rate = stream->enc->sample_rate;
- coded_frame_size = (stream->enc->bit_rate *
+ coded_frame_size = (stream->enc->bit_rate *
stream->enc->frame_size) / (8 * sample_rate);
/* audio codec info */
put_tag(s, ".ra");
put_be32(s, 0x249f0); /* unknown */
put_be16(s, 0x01);
/* frame length : seems to be very important */
- put_be16(s, coded_frame_size);
+ put_be16(s, coded_frame_size);
put_be32(s, 0); /* unknown */
put_be16(s, stream->enc->sample_rate); /* sample rate */
put_be32(s, 0x10); /* unknown */
versions seems to add a diffential DC coding as in
MPEG... nothing new under the sun */
if(stream->enc->codec_id == CODEC_ID_RV10)
- put_be32(s,0x10000000);
+ put_be32(s,0x10000000);
else
- put_be32(s,0x20103001);
- //put_be32(s,0x10003000);
+ put_be32(s,0x20103001);
+ //put_be32(s,0x10003000);
}
}
data_offset_ptr[1] = data_pos >> 16;
data_offset_ptr[2] = data_pos >> 8;
data_offset_ptr[3] = data_pos;
-
+
/* data stream */
put_tag(s,"DATA");
put_be32(s,data_size + 10 + 8);
put_be32(s,0); /* next data header */
}
-static void write_packet_header(AVFormatContext *ctx, StreamInfo *stream,
+static void write_packet_header(AVFormatContext *ctx, StreamInfo *stream,
int length, int key_frame)
{
int timestamp;
/* XXX: suppress this malloc */
buf1= (uint8_t*) av_malloc( size * sizeof(uint8_t) );
-
+
write_packet_header(s, stream, size, !!(flags & PKT_FLAG_KEY));
-
+
/* for AC3, the words seems to be reversed */
for(i=0;i<size;i+=2) {
buf1[i] = buf[i+1];
#if 1
write_packet_header(s, stream, size + 7, key_frame);
/* bit 7: '1' if final packet of a frame converted in several packets */
- put_byte(pb, 0x81);
+ put_byte(pb, 0x81);
/* bit 7: '1' if I frame. bits 6..0 : sequence number in current
frame starting from 1 */
if (key_frame) {
- put_byte(pb, 0x81);
+ put_byte(pb, 0x81);
} else {
- put_byte(pb, 0x01);
+ put_byte(pb, 0x01);
}
put_be16(pb, 0x4000 + (size)); /* total frame size */
put_be16(pb, 0x4000 + (size)); /* offset from the start or the end */
#else
/* full frame */
write_packet_header(s, size + 6);
- put_byte(pb, 0xc0);
+ put_byte(pb, 0xc0);
put_be16(pb, 0x4000 + size); /* total frame size */
put_be16(pb, 0x4000 + packet_number * 126); /* position in stream */
#endif
- put_byte(pb, stream->nb_frames & 0xff);
-
+ put_byte(pb, stream->nb_frames & 0xff);
+
put_buffer(pb, buf, size);
put_flush_packet(pb);
static int rm_write_packet(AVFormatContext *s, AVPacket *pkt)
{
- if (s->streams[pkt->stream_index]->codec->codec_type ==
+ if (s->streams[pkt->stream_index]->codec->codec_type ==
CODEC_TYPE_AUDIO)
return rm_write_audio(s, pkt->data, pkt->size, pkt->flags);
else
return rm_write_video(s, pkt->data, pkt->size, pkt->flags);
}
-
+
static int rm_write_trailer(AVFormatContext *s)
{
RMContext *rm = s->priv_data;
put_tag(pb, "INDX");
put_be32(pb, 10 + 10 * s->nb_streams);
put_be16(pb, 0);
-
+
for(i=0;i<s->nb_streams;i++) {
put_be32(pb, 0); /* zero indices */
put_be16(pb, i); /* stream number */
/* undocumented end header */
put_be32(pb, 0);
put_be32(pb, 0);
-
+
url_fseek(pb, 0, SEEK_SET);
for(i=0;i<s->nb_streams;i++)
rm->streams[i].total_frames = rm->streams[i].nb_frames;
*q = '\0';
}
-static void rm_read_audio_stream_info(AVFormatContext *s, AVStream *st,
+static int rm_read_audio_stream_info(AVFormatContext *s, AVStream *st,
int read_all)
{
RMContext *rm = s->priv_data;
ByteIOContext *pb = &s->pb;
- char buf[128];
+ char buf[256];
uint32_t version;
int i;
/* ra type header */
version = get_be32(pb); /* version */
if (((version >> 16) & 0xff) == 3) {
+ int64_t startpos = url_ftell(pb);
/* very old version */
for(i = 0; i < 14; i++)
get_byte(pb);
get_str8(pb, s->author, sizeof(s->author));
get_str8(pb, s->copyright, sizeof(s->copyright));
get_str8(pb, s->comment, sizeof(s->comment));
+ if ((startpos + (version & 0xffff)) >= url_ftell(pb) + 2) {
+ // fourcc (should always be "lpcJ")
get_byte(pb);
get_str8(pb, buf, sizeof(buf));
+ }
+ // Skip extra header crap (this should never happen)
+ if ((startpos + (version & 0xffff)) > url_ftell(pb))
+ url_fskip(pb, (version & 0xffff) + startpos - url_ftell(pb));
st->codec->sample_rate = 8000;
st->codec->channels = 1;
st->codec->codec_type = CODEC_TYPE_AUDIO;
get_be32(pb); /* ??? */
get_be32(pb); /* ??? */
get_be32(pb); /* ??? */
- rm->sub_packet_h = sub_packet_h = get_be16(pb); /* 1 */
+ rm->sub_packet_h = sub_packet_h = get_be16(pb); /* 1 */
st->codec->block_align= get_be16(pb); /* frame size */
rm->sub_packet_size = sub_packet_size = get_be16(pb); /* sub packet size */
get_be16(pb); /* ??? */
st->codec->channels = get_be16(pb);
if (((version >> 16) & 0xff) == 5) {
get_be32(pb);
- buf[0] = get_byte(pb);
- buf[1] = get_byte(pb);
- buf[2] = get_byte(pb);
- buf[3] = get_byte(pb);
- buf[4] = 0;
- } else {
- get_str8(pb, buf, sizeof(buf)); /* desc */
- get_str8(pb, buf, sizeof(buf)); /* desc */
- }
+ buf[0] = get_byte(pb);
+ buf[1] = get_byte(pb);
+ buf[2] = get_byte(pb);
+ buf[3] = get_byte(pb);
+ buf[4] = 0;
+ } else {
+ get_str8(pb, buf, sizeof(buf)); /* desc */
+ get_str8(pb, buf, sizeof(buf)); /* desc */
+ }
st->codec->codec_type = CODEC_TYPE_AUDIO;
if (!strcmp(buf, "dnet")) {
st->codec->codec_id = CODEC_ID_AC3;
st->codec->extradata_size= 0;
rm->audio_framesize = st->codec->block_align;
st->codec->block_align = coded_framesize;
+
+ if(rm->audio_framesize >= UINT_MAX / sub_packet_h){
+ av_log(s, AV_LOG_ERROR, "rm->audio_framesize * sub_packet_h too large\n");
+ return -1;
+ }
+
rm->audiobuf = av_malloc(rm->audio_framesize * sub_packet_h);
- } else if (!strcmp(buf, "cook")) {
+ } else if ((!strcmp(buf, "cook")) || (!strcmp(buf, "atrc"))) {
int codecdata_length, i;
get_be16(pb); get_byte(pb);
if (((version >> 16) & 0xff) == 5)
get_byte(pb);
codecdata_length = get_be32(pb);
- st->codec->codec_id = CODEC_ID_COOK;
+ if(codecdata_length + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){
+ av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
+ return -1;
+ }
+
+ if (!strcmp(buf, "cook")) st->codec->codec_id = CODEC_ID_COOK;
+ else st->codec->codec_id = CODEC_ID_ATRAC3;
st->codec->extradata_size= codecdata_length;
st->codec->extradata= av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
for(i = 0; i < codecdata_length; i++)
((uint8_t*)st->codec->extradata)[i] = get_byte(pb);
rm->audio_framesize = st->codec->block_align;
st->codec->block_align = rm->sub_packet_size;
+
+ if(rm->audio_framesize >= UINT_MAX / sub_packet_h){
+ av_log(s, AV_LOG_ERROR, "rm->audio_framesize * sub_packet_h too large\n");
+ return -1;
+ }
+
rm->audiobuf = av_malloc(rm->audio_framesize * sub_packet_h);
+ } else if (!strcmp(buf, "raac") || !strcmp(buf, "racp")) {
+ int codecdata_length, i;
+ get_be16(pb); get_byte(pb);
+ if (((version >> 16) & 0xff) == 5)
+ get_byte(pb);
+ st->codec->codec_id = CODEC_ID_AAC;
+ codecdata_length = get_be32(pb);
+ if(codecdata_length + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){
+ av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
+ return -1;
+ }
+ if (codecdata_length >= 1) {
+ st->codec->extradata_size = codecdata_length - 1;
+ st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ get_byte(pb);
+ for(i = 0; i < st->codec->extradata_size; i++)
+ ((uint8_t*)st->codec->extradata)[i] = get_byte(pb);
+ }
} else {
st->codec->codec_id = CODEC_ID_NONE;
pstrcpy(st->codec->codec_name, sizeof(st->codec->codec_name),
get_byte(pb);
get_byte(pb);
get_byte(pb);
-
+
get_str8(pb, s->title, sizeof(s->title));
get_str8(pb, s->author, sizeof(s->author));
get_str8(pb, s->copyright, sizeof(s->copyright));
get_str8(pb, s->comment, sizeof(s->comment));
}
}
+ return 0;
}
static int rm_read_header_old(AVFormatContext *s, AVFormatParameters *ap)
rm->old_format = 1;
st = av_new_stream(s, 0);
if (!st)
- goto fail;
- rm_read_audio_stream_info(s, st, 1);
- return 0;
- fail:
- return -1;
+ return -1;
+ return rm_read_audio_stream_info(s, st, 1);
}
static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap)
unsigned int tag, v;
int tag_size, size, codec_data_size, i;
int64_t codec_pos;
- unsigned int h263_hack_version, start_time, duration;
+ unsigned int start_time, duration;
char buf[128];
int flags = 0;
get_be16(pb);
get_be32(pb);
get_be32(pb); /* number of headers */
-
+
for(;;) {
if (url_feof(pb))
goto fail;
tag_size = get_be32(pb);
get_be16(pb);
#if 0
- printf("tag=%c%c%c%c (%08x) size=%d\n",
+ printf("tag=%c%c%c%c (%08x) size=%d\n",
(tag) & 0xff,
(tag >> 8) & 0xff,
(tag >> 16) & 0xff,
v = get_be32(pb);
if (v == MKTAG(0xfd, 'a', 'r', '.')) {
/* ra type header */
- rm_read_audio_stream_info(s, st, 0);
+ if (rm_read_audio_stream_info(s, st, 0))
+ return -1;
} else {
int fps, fps2;
if (get_le32(pb) != MKTAG('V', 'I', 'D', 'O')) {
get_be32(pb);
fps2= get_be16(pb);
get_be16(pb);
-
+
st->codec->extradata_size= codec_data_size - (url_ftell(pb) - codec_pos);
+
+ if(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)st->codec->extradata_size){
+ //check is redundant as get_buffer() will catch this
+ av_log(s, AV_LOG_ERROR, "st->codec->extradata_size too large\n");
+ return -1;
+ }
st->codec->extradata= av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
-
+
// av_log(NULL, AV_LOG_DEBUG, "fps= %d fps2= %d\n", fps, fps2);
st->codec->time_base.den = fps * st->codec->time_base.num;
- /* modification of h263 codec version (!) */
-#ifdef WORDS_BIGENDIAN
- h263_hack_version = ((uint32_t*)st->codec->extradata)[1];
-#else
- h263_hack_version = bswap_32(((uint32_t*)st->codec->extradata)[1]);
-#endif
- st->codec->sub_id = h263_hack_version;
- switch((h263_hack_version>>28)){
+ switch(((uint8_t*)st->codec->extradata)[4]>>4){
case 1: st->codec->codec_id = CODEC_ID_RV10; break;
case 2: st->codec->codec_id = CODEC_ID_RV20; break;
case 3: st->codec->codec_id = CODEC_ID_RV30; break;
*flags= 0;
}else{
state= (state<<8) + get_byte(pb);
-
+
if(state == MKBETAG('I', 'N', 'D', 'X')){
len = get_be16(pb) - 6;
if(len<0)
continue;
goto skip;
}
-
+
if(state > (unsigned)0xFFFF || state < 12)
continue;
len=state;
res= get_byte(pb); /* reserved */
*flags = get_byte(pb); /* flags */
-
+
len -= 12;
}
for(i=0;i<s->nb_streams;i++) {
continue;
}
*stream_index= i;
-
+
return len;
}
return -1;
uint8_t *ptr;
int flags;
- if (rm->old_format) {
- /* just read raw bytes */
- len = RAW_PACKET_SIZE;
- len= av_get_packet(pb, pkt, len);
- pkt->stream_index = 0;
- if (len <= 0) {
- return AVERROR_IO;
- }
- pkt->size = len;
- st = s->streams[0];
- } else if (rm->audio_pkt_cnt) {
+ if (rm->audio_pkt_cnt) {
// If there are queued audio packet return them first
st = s->streams[rm->audio_stream_num];
+ if (st->codec->codec_id == CODEC_ID_AAC)
+ av_get_packet(pb, pkt, rm->sub_packet_lengths[rm->sub_packet_cnt - rm->audio_pkt_cnt]);
+ else {
av_new_packet(pkt, st->codec->block_align);
memcpy(pkt->data, rm->audiobuf + st->codec->block_align *
(rm->sub_packet_h * rm->audio_framesize / st->codec->block_align - rm->audio_pkt_cnt),
st->codec->block_align);
+ }
rm->audio_pkt_cnt--;
pkt->flags = 0;
pkt->stream_index = rm->audio_stream_num;
+ } else if (rm->old_format) {
+ st = s->streams[0];
+ if (st->codec->codec_id == CODEC_ID_RA_288) {
+ int x, y;
+
+ for (y = 0; y < rm->sub_packet_h; y++)
+ for (x = 0; x < rm->sub_packet_h/2; x++)
+ if (get_buffer(pb, rm->audiobuf+x*2*rm->audio_framesize+y*rm->coded_framesize, rm->coded_framesize) <= 0)
+ return AVERROR_IO;
+ rm->audio_stream_num = 0;
+ rm->audio_pkt_cnt = rm->sub_packet_h * rm->audio_framesize / st->codec->block_align - 1;
+ // Release first audio packet
+ av_new_packet(pkt, st->codec->block_align);
+ memcpy(pkt->data, rm->audiobuf, st->codec->block_align);
+ pkt->flags |= PKT_FLAG_KEY; // Mark first packet as keyframe
+ pkt->stream_index = 0;
+ } else {
+ /* just read raw bytes */
+ len = RAW_PACKET_SIZE;
+ len= av_get_packet(pb, pkt, len);
+ pkt->stream_index = 0;
+ if (len <= 0) {
+ return AVERROR_IO;
+ }
+ pkt->size = len;
+ }
} else {
int seq=1;
resync:
len=len2;
rm->remaining_len-= len;
av_get_packet(pb, pkt, len);
- }
- if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
+ } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
if ((st->codec->codec_id == CODEC_ID_RA_288) ||
- (st->codec->codec_id == CODEC_ID_COOK)) {
+ (st->codec->codec_id == CODEC_ID_COOK) ||
+ (st->codec->codec_id == CODEC_ID_ATRAC3)) {
int x;
int sps = rm->sub_packet_size;
int cfs = rm->coded_framesize;
for (x = 0; x < h/2; x++)
get_buffer(pb, rm->audiobuf+x*2*w+y*cfs, cfs);
break;
+ case CODEC_ID_ATRAC3:
case CODEC_ID_COOK:
for (x = 0; x < w/sps; x++)
get_buffer(pb, rm->audiobuf+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)), sps);
timestamp = rm->audiotimestamp;
flags = 2; // Mark first packet as keyframe
}
+ } else if (st->codec->codec_id == CODEC_ID_AAC) {
+ int x;
+ rm->audio_stream_num = i;
+ rm->sub_packet_cnt = (get_be16(pb) & 0xf0) >> 4;
+ if (rm->sub_packet_cnt) {
+ for (x = 0; x < rm->sub_packet_cnt; x++)
+ rm->sub_packet_lengths[x] = get_be16(pb);
+ // Release first audio packet
+ rm->audio_pkt_cnt = rm->sub_packet_cnt - 1;
+ av_get_packet(pb, pkt, rm->sub_packet_lengths[0]);
+ flags = 2; // Mark first packet as keyframe
+ }
} else
av_get_packet(pb, pkt, len);
- }
+
+ } else
+ av_get_packet(pb, pkt, len);
if( (st->discard >= AVDISCARD_NONKEY && !(flags&2))
|| st->discard >= AVDISCARD_ALL){
av_free_packet(pkt);
goto resync;
}
-
+
pkt->stream_index = i;
#if 0
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
if(st->codec->codec_id == CODEC_ID_RV20){
int seq= 128*(pkt->data[2]&0x7F) + (pkt->data[3]>>1);
- av_log(NULL, AV_LOG_DEBUG, "%d %Ld %d\n", timestamp, timestamp*512LL/25, seq);
+ av_log(NULL, AV_LOG_DEBUG, "%d %"PRId64" %d\n", timestamp, timestamp*512LL/25, seq);
seq |= (timestamp&~0x3FFF);
if(seq - timestamp > 0x2000) seq -= 0x4000;
if(flags&2){
pkt->flags |= PKT_FLAG_KEY;
if((seq&0x7F) == 1)
- av_add_index_entry(st, pos, timestamp, 0, AVINDEX_KEYFRAME);
+ av_add_index_entry(st, pos, timestamp, 0, 0, AVINDEX_KEYFRAME);
}
}
static int rm_probe(AVProbeData *p)
{
/* check file header */
- if (p->buf_size <= 32)
- return 0;
if ((p->buf[0] == '.' && p->buf[1] == 'R' &&
p->buf[2] == 'M' && p->buf[3] == 'F' &&
p->buf[4] == 0 && p->buf[5] == 0) ||
return 0;
}
-static int64_t rm_read_dts(AVFormatContext *s, int stream_index,
+static int64_t rm_read_dts(AVFormatContext *s, int stream_index,
int64_t *ppos, int64_t pos_limit)
{
RMContext *rm = s->priv_data;
int stream_index2, flags, len, h;
pos = *ppos;
-
+
if(rm->old_format)
return AV_NOPTS_VALUE;
seq = get_byte(&s->pb); len--;
}
}
-
+
if((flags&2) && (seq&0x7F) == 1){
-// av_log(s, AV_LOG_DEBUG, "%d %d-%d %Ld %d\n", flags, stream_index2, stream_index, dts, seq);
- av_add_index_entry(st, pos, dts, 0, AVINDEX_KEYFRAME);
+// av_log(s, AV_LOG_DEBUG, "%d %d-%d %"PRId64" %d\n", flags, stream_index2, stream_index, dts, seq);
+ av_add_index_entry(st, pos, dts, 0, 0, AVINDEX_KEYFRAME);
if(stream_index2 == stream_index)
break;
}
return dts;
}
-static AVInputFormat rm_iformat = {
+#ifdef CONFIG_RM_DEMUXER
+AVInputFormat rm_demuxer = {
"rm",
"rm format",
sizeof(RMContext),
NULL,
rm_read_dts,
};
-
-#ifdef CONFIG_MUXERS
-static AVOutputFormat rm_oformat = {
+#endif
+#ifdef CONFIG_RM_MUXER
+AVOutputFormat rm_muxer = {
"rm",
"rm format",
"application/vnd.rn-realmedia",
rm_write_packet,
rm_write_trailer,
};
-#endif //CONFIG_MUXERS
-
-int rm_init(void)
-{
- av_register_input_format(&rm_iformat);
-#ifdef CONFIG_MUXERS
- av_register_output_format(&rm_oformat);
-#endif //CONFIG_MUXERS
- return 0;
-}
+#endif
projects / ffmpeg / blobdiff