OBJS-$(CONFIG_RAWVIDEO_DEMUXER) += raw.o
OBJS-$(CONFIG_RAWVIDEO_MUXER) += raw.o
OBJS-$(CONFIG_REDIR_DEMUXER) += rtsp.o
-OBJS-$(CONFIG_RM_DEMUXER) += rm.o
-OBJS-$(CONFIG_RM_MUXER) += rm.o
+OBJS-$(CONFIG_RM_DEMUXER) += rmdec.o
+OBJS-$(CONFIG_RM_MUXER) += rmenc.o
OBJS-$(CONFIG_ROQ_DEMUXER) += idroq.o
OBJS-$(CONFIG_ROQ_MUXER) += raw.o
OBJS-$(CONFIG_RTP_MUXER) += rtp.o rtp_h264.o
+++ /dev/null
-/*
- * "Real" compatible muxer and demuxer.
- * Copyright (c) 2000, 2001 Fabrice Bellard.
- *
- * 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 2.1 of the License, or (at your option) any later version.
- *
- * 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 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
-
-typedef struct {
- int nb_packets;
- int packet_total_size;
- int packet_max_size;
- /* codec related output */
- int bit_rate;
- float frame_rate;
- int nb_frames; /* current frame number */
- int total_frames; /* total number of frames */
- int num;
- AVCodecContext *enc;
-} StreamInfo;
-
-typedef struct {
- StreamInfo streams[2];
- StreamInfo *audio_stream, *video_stream;
- int data_pos; /* position of the data after the header */
- int nb_packets;
- int old_format;
- int current_stream;
- int remaining_len;
- /// Audio descrambling matrix parameters
- uint8_t *audiobuf; ///< place to store reordered audio data
- int64_t audiotimestamp; ///< Audio packet timestamp
- int sub_packet_cnt; // Subpacket counter, used while reading
- int sub_packet_size, sub_packet_h, coded_framesize; ///< Descrambling parameters from container
- 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 put_str(ByteIOContext *s, const char *tag)
-{
- put_be16(s,strlen(tag));
- while (*tag) {
- put_byte(s, *tag++);
- }
-}
-
-static void put_str8(ByteIOContext *s, const char *tag)
-{
- put_byte(s, strlen(tag));
- while (*tag) {
- put_byte(s, *tag++);
- }
-}
-
-static void rv10_write_header(AVFormatContext *ctx,
- int data_size, int index_pos)
-{
- RMContext *rm = ctx->priv_data;
- ByteIOContext *s = &ctx->pb;
- StreamInfo *stream;
- unsigned char *data_offset_ptr, *start_ptr;
- const char *desc, *mimetype;
- int nb_packets, packet_total_size, packet_max_size, size, packet_avg_size, i;
- int bit_rate, v, duration, flags, data_pos;
-
- start_ptr = s->buf_ptr;
-
- put_tag(s, ".RMF");
- put_be32(s,18); /* header size */
- put_be16(s,0);
- put_be32(s,0);
- put_be32(s,4 + ctx->nb_streams); /* num headers */
-
- put_tag(s,"PROP");
- put_be32(s, 50);
- put_be16(s, 0);
- packet_max_size = 0;
- packet_total_size = 0;
- nb_packets = 0;
- bit_rate = 0;
- duration = 0;
- for(i=0;i<ctx->nb_streams;i++) {
- StreamInfo *stream = &rm->streams[i];
- bit_rate += stream->bit_rate;
- if (stream->packet_max_size > packet_max_size)
- packet_max_size = stream->packet_max_size;
- nb_packets += stream->nb_packets;
- packet_total_size += stream->packet_total_size;
- /* select maximum duration */
- v = (int) (1000.0 * (float)stream->total_frames / stream->frame_rate);
- if (v > duration)
- duration = v;
- }
- put_be32(s, bit_rate); /* max bit rate */
- put_be32(s, bit_rate); /* avg bit rate */
- put_be32(s, packet_max_size); /* max packet size */
- if (nb_packets > 0)
- packet_avg_size = packet_total_size / nb_packets;
- else
- packet_avg_size = 0;
- put_be32(s, packet_avg_size); /* avg packet size */
- put_be32(s, nb_packets); /* num packets */
- put_be32(s, duration); /* duration */
- put_be32(s, BUFFER_DURATION); /* preroll */
- put_be32(s, index_pos); /* index offset */
- /* computation of data the data offset */
- data_offset_ptr = s->buf_ptr;
- put_be32(s, 0); /* data offset : will be patched after */
- put_be16(s, ctx->nb_streams); /* num streams */
- flags = 1 | 2; /* save allowed & perfect play */
- 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) +
- strlen(ctx->comment) + 4 * 2 + 10;
- put_be32(s,size);
- put_be16(s,0);
- put_str(s, ctx->title);
- 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";
- codec_data_size = 73;
- } else {
- desc = "The Video Stream";
- mimetype = "video/x-pn-realvideo";
- codec_data_size = 34;
- }
-
- put_tag(s,"MDPR");
- size = 10 + 9 * 4 + strlen(desc) + strlen(mimetype) + codec_data_size;
- put_be32(s, size);
- put_be16(s, 0);
-
- put_be16(s, i); /* stream number */
- put_be32(s, stream->bit_rate); /* max bit rate */
- 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 /
- stream->nb_packets;
- else
- packet_avg_size = 0;
- put_be32(s, packet_avg_size); /* avg packet size */
- put_be32(s, 0); /* start time */
- put_be32(s, BUFFER_DURATION); /* preroll */
- /* duration */
- if (url_is_streamed(s) || !stream->total_frames)
- put_be32(s, (int)(3600 * 1000));
- else
- put_be32(s, (int)(stream->total_frames * 1000 / stream->frame_rate));
- 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 *
- stream->enc->frame_size) / (8 * sample_rate);
- /* audio codec info */
- put_tag(s, ".ra");
- put_byte(s, 0xfd);
- put_be32(s, 0x00040000); /* version */
- put_tag(s, ".ra4");
- put_be32(s, 0x01b53530); /* stream length */
- put_be16(s, 4); /* unknown */
- put_be32(s, 0x39); /* header size */
-
- switch(sample_rate) {
- case 48000:
- case 24000:
- case 12000:
- fscode = 1;
- break;
- default:
- case 44100:
- case 22050:
- case 11025:
- fscode = 2;
- break;
- case 32000:
- case 16000:
- case 8000:
- fscode = 3;
- }
- put_be16(s, fscode); /* codec additional info, for AC3, seems
- to be a frequency code */
- /* special hack to compensate rounding errors... */
- if (coded_frame_size == 557)
- coded_frame_size--;
- put_be32(s, coded_frame_size); /* frame length */
- put_be32(s, 0x51540); /* unknown */
- put_be32(s, 0x249f0); /* unknown */
- put_be32(s, 0x249f0); /* unknown */
- put_be16(s, 0x01);
- /* frame length : seems to be very important */
- 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 */
- put_be16(s, stream->enc->channels);
- put_str8(s, "Int0"); /* codec name */
- put_str8(s, "dnet"); /* codec name */
- put_be16(s, 0); /* title length */
- put_be16(s, 0); /* author length */
- put_be16(s, 0); /* copyright length */
- put_byte(s, 0); /* end of header */
- } else {
- /* video codec info */
- put_be32(s,34); /* size */
- if(stream->enc->codec_id == CODEC_ID_RV10)
- put_tag(s,"VIDORV10");
- else
- put_tag(s,"VIDORV20");
- put_be16(s, stream->enc->width);
- put_be16(s, stream->enc->height);
- put_be16(s, (int) stream->frame_rate); /* frames per seconds ? */
- put_be32(s,0); /* unknown meaning */
- put_be16(s, (int) stream->frame_rate); /* unknown meaning */
- put_be32(s,0); /* unknown meaning */
- put_be16(s, 8); /* unknown meaning */
- /* Seems to be the codec version: only use basic H263. The next
- 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);
- else
- put_be32(s,0x20103001);
- //put_be32(s,0x10003000);
- }
- }
-
- /* patch data offset field */
- data_pos = s->buf_ptr - start_ptr;
- rm->data_pos = data_pos;
- data_offset_ptr[0] = data_pos >> 24;
- 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_be16(s,0);
-
- put_be32(s, nb_packets); /* number of packets */
- put_be32(s,0); /* next data header */
-}
-
-static void write_packet_header(AVFormatContext *ctx, StreamInfo *stream,
- int length, int key_frame)
-{
- int timestamp;
- ByteIOContext *s = &ctx->pb;
-
- stream->nb_packets++;
- stream->packet_total_size += length;
- if (length > stream->packet_max_size)
- stream->packet_max_size = length;
-
- put_be16(s,0); /* version */
- put_be16(s,length + 12);
- put_be16(s, stream->num); /* stream number */
- timestamp = (1000 * (float)stream->nb_frames) / stream->frame_rate;
- put_be32(s, timestamp); /* timestamp */
- put_byte(s, 0); /* reserved */
- put_byte(s, key_frame ? 2 : 0); /* flags */
-}
-
-static int rm_write_header(AVFormatContext *s)
-{
- RMContext *rm = s->priv_data;
- StreamInfo *stream;
- int n;
- AVCodecContext *codec;
-
- for(n=0;n<s->nb_streams;n++) {
- s->streams[n]->id = n;
- codec = s->streams[n]->codec;
- stream = &rm->streams[n];
- memset(stream, 0, sizeof(StreamInfo));
- stream->num = n;
- stream->bit_rate = codec->bit_rate;
- stream->enc = codec;
-
- switch(codec->codec_type) {
- case CODEC_TYPE_AUDIO:
- rm->audio_stream = stream;
- stream->frame_rate = (float)codec->sample_rate / (float)codec->frame_size;
- /* XXX: dummy values */
- stream->packet_max_size = 1024;
- stream->nb_packets = 0;
- stream->total_frames = stream->nb_packets;
- break;
- case CODEC_TYPE_VIDEO:
- rm->video_stream = stream;
- stream->frame_rate = (float)codec->time_base.den / (float)codec->time_base.num;
- /* XXX: dummy values */
- stream->packet_max_size = 4096;
- stream->nb_packets = 0;
- stream->total_frames = stream->nb_packets;
- break;
- default:
- return -1;
- }
- }
-
- rv10_write_header(s, 0, 0);
- put_flush_packet(&s->pb);
- return 0;
-}
-
-static int rm_write_audio(AVFormatContext *s, const uint8_t *buf, int size, int flags)
-{
- uint8_t *buf1;
- RMContext *rm = s->priv_data;
- ByteIOContext *pb = &s->pb;
- StreamInfo *stream = rm->audio_stream;
- int i;
-
- /* 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];
- buf1[i+1] = buf[i];
- }
- put_buffer(pb, buf1, size);
- put_flush_packet(pb);
- stream->nb_frames++;
- av_free(buf1);
- return 0;
-}
-
-static int rm_write_video(AVFormatContext *s, const uint8_t *buf, int size, int flags)
-{
- RMContext *rm = s->priv_data;
- ByteIOContext *pb = &s->pb;
- StreamInfo *stream = rm->video_stream;
- int key_frame = !!(flags & PKT_FLAG_KEY);
-
- /* XXX: this is incorrect: should be a parameter */
-
- /* Well, I spent some time finding the meaning of these bits. I am
- not sure I understood everything, but it works !! */
-#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);
- /* bit 7: '1' if I frame. bits 6..0 : sequence number in current
- frame starting from 1 */
- if (key_frame) {
- put_byte(pb, 0x81);
- } else {
- 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_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_buffer(pb, buf, size);
- put_flush_packet(pb);
-
- stream->nb_frames++;
- return 0;
-}
-
-static int rm_write_packet(AVFormatContext *s, AVPacket *pkt)
-{
- 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;
- int data_size, index_pos, i;
- ByteIOContext *pb = &s->pb;
-
- if (!url_is_streamed(&s->pb)) {
- /* end of file: finish to write header */
- index_pos = url_fseek(pb, 0, SEEK_CUR);
- data_size = index_pos - rm->data_pos;
-
- /* index */
- 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 */
- put_be32(pb, 0); /* next index */
- }
- /* 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;
- rv10_write_header(s, data_size, index_pos);
- } else {
- /* undocumented end header */
- put_be32(pb, 0);
- put_be32(pb, 0);
- }
- put_flush_packet(pb);
- return 0;
-}
-#endif //CONFIG_MUXERS
-
-/***************************************************/
-
-static void get_str(ByteIOContext *pb, char *buf, int buf_size)
-{
- int len, i;
- char *q;
-
- len = get_be16(pb);
- q = buf;
- for(i=0;i<len;i++) {
- if (i < buf_size - 1)
- *q++ = get_byte(pb);
- }
- *q = '\0';
-}
-
-static void get_str8(ByteIOContext *pb, char *buf, int buf_size)
-{
- int len, i;
- char *q;
-
- len = get_byte(pb);
- q = buf;
- for(i=0;i<len;i++) {
- if (i < buf_size - 1)
- *q++ = get_byte(pb);
- }
- *q = '\0';
-}
-
-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[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->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));
- 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;
- st->codec->codec_id = CODEC_ID_RA_144;
- } else {
- int flavor, sub_packet_h, coded_framesize, sub_packet_size;
- /* old version (4) */
- get_be32(pb); /* .ra4 */
- get_be32(pb); /* data size */
- get_be16(pb); /* version2 */
- get_be32(pb); /* header size */
- flavor= get_be16(pb); /* add codec info / flavor */
- rm->coded_framesize = coded_framesize = get_be32(pb); /* coded frame size */
- get_be32(pb); /* ??? */
- get_be32(pb); /* ??? */
- get_be32(pb); /* ??? */
- 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); /* ??? */
- if (((version >> 16) & 0xff) == 5) {
- get_be16(pb); get_be16(pb); get_be16(pb); }
- st->codec->sample_rate = get_be16(pb);
- get_be32(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 */
- }
- st->codec->codec_type = CODEC_TYPE_AUDIO;
- if (!strcmp(buf, "dnet")) {
- st->codec->codec_id = CODEC_ID_AC3;
- } else if (!strcmp(buf, "28_8")) {
- st->codec->codec_id = CODEC_ID_RA_288;
- 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")) || (!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);
- 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),
- buf);
- }
- if (read_all) {
- 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)
-{
- RMContext *rm = s->priv_data;
- AVStream *st;
-
- rm->old_format = 1;
- st = av_new_stream(s, 0);
- if (!st)
- return -1;
- return rm_read_audio_stream_info(s, st, 1);
-}
-
-static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap)
-{
- RMContext *rm = s->priv_data;
- AVStream *st;
- ByteIOContext *pb = &s->pb;
- unsigned int tag, v;
- int tag_size, size, codec_data_size, i;
- int64_t codec_pos;
- unsigned int start_time, duration;
- char buf[128];
- int flags = 0;
-
- tag = get_le32(pb);
- if (tag == MKTAG('.', 'r', 'a', 0xfd)) {
- /* very old .ra format */
- return rm_read_header_old(s, ap);
- } else if (tag != MKTAG('.', 'R', 'M', 'F')) {
- return AVERROR_IO;
- }
-
- get_be32(pb); /* header size */
- get_be16(pb);
- get_be32(pb);
- get_be32(pb); /* number of headers */
-
- for(;;) {
- if (url_feof(pb))
- goto fail;
- tag = get_le32(pb);
- tag_size = get_be32(pb);
- get_be16(pb);
-#if 0
- printf("tag=%c%c%c%c (%08x) size=%d\n",
- (tag) & 0xff,
- (tag >> 8) & 0xff,
- (tag >> 16) & 0xff,
- (tag >> 24) & 0xff,
- tag,
- tag_size);
-#endif
- if (tag_size < 10 && tag != MKTAG('D', 'A', 'T', 'A'))
- goto fail;
- switch(tag) {
- case MKTAG('P', 'R', 'O', 'P'):
- /* file header */
- get_be32(pb); /* max bit rate */
- get_be32(pb); /* avg bit rate */
- get_be32(pb); /* max packet size */
- get_be32(pb); /* avg packet size */
- get_be32(pb); /* nb packets */
- get_be32(pb); /* duration */
- get_be32(pb); /* preroll */
- get_be32(pb); /* index offset */
- get_be32(pb); /* data offset */
- get_be16(pb); /* nb streams */
- flags = get_be16(pb); /* flags */
- break;
- case MKTAG('C', 'O', 'N', 'T'):
- get_str(pb, s->title, sizeof(s->title));
- get_str(pb, s->author, sizeof(s->author));
- get_str(pb, s->copyright, sizeof(s->copyright));
- get_str(pb, s->comment, sizeof(s->comment));
- break;
- case MKTAG('M', 'D', 'P', 'R'):
- st = av_new_stream(s, 0);
- if (!st)
- goto fail;
- st->id = get_be16(pb);
- get_be32(pb); /* max bit rate */
- st->codec->bit_rate = get_be32(pb); /* bit rate */
- get_be32(pb); /* max packet size */
- get_be32(pb); /* avg packet size */
- start_time = get_be32(pb); /* start time */
- get_be32(pb); /* preroll */
- duration = get_be32(pb); /* duration */
- st->start_time = start_time;
- st->duration = duration;
- get_str8(pb, buf, sizeof(buf)); /* desc */
- get_str8(pb, buf, sizeof(buf)); /* mimetype */
- codec_data_size = get_be32(pb);
- codec_pos = url_ftell(pb);
- st->codec->codec_type = CODEC_TYPE_DATA;
- av_set_pts_info(st, 64, 1, 1000);
-
- v = get_be32(pb);
- if (v == MKTAG(0xfd, 'a', 'r', '.')) {
- /* ra type header */
- if (rm_read_audio_stream_info(s, st, 0))
- return -1;
- } else {
- int fps, fps2;
- if (get_le32(pb) != MKTAG('V', 'I', 'D', 'O')) {
- fail1:
- av_log(st->codec, AV_LOG_ERROR, "Unsupported video codec\n");
- goto skip;
- }
- st->codec->codec_tag = get_le32(pb);
-// av_log(NULL, AV_LOG_DEBUG, "%X %X\n", st->codec->codec_tag, MKTAG('R', 'V', '2', '0'));
- if ( st->codec->codec_tag != MKTAG('R', 'V', '1', '0')
- && st->codec->codec_tag != MKTAG('R', 'V', '2', '0')
- && st->codec->codec_tag != MKTAG('R', 'V', '3', '0')
- && st->codec->codec_tag != MKTAG('R', 'V', '4', '0'))
- goto fail1;
- st->codec->width = get_be16(pb);
- st->codec->height = get_be16(pb);
- st->codec->time_base.num= 1;
- fps= get_be16(pb);
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- 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;
- 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;
- case 4: st->codec->codec_id = CODEC_ID_RV40; break;
- default: goto fail1;
- }
- }
-skip:
- /* skip codec info */
- size = url_ftell(pb) - codec_pos;
- url_fskip(pb, codec_data_size - size);
- break;
- case MKTAG('D', 'A', 'T', 'A'):
- goto header_end;
- default:
- /* unknown tag: skip it */
- url_fskip(pb, tag_size - 10);
- break;
- }
- }
- header_end:
- rm->nb_packets = get_be32(pb); /* number of packets */
- if (!rm->nb_packets && (flags & 4))
- rm->nb_packets = 3600 * 25;
- get_be32(pb); /* next data header */
- return 0;
-
- fail:
- for(i=0;i<s->nb_streams;i++) {
- av_free(s->streams[i]);
- }
- return AVERROR_IO;
-}
-
-static int get_num(ByteIOContext *pb, int *len)
-{
- int n, n1;
-
- n = get_be16(pb);
- (*len)-=2;
- if (n >= 0x4000) {
- return n - 0x4000;
- } else {
- n1 = get_be16(pb);
- (*len)-=2;
- return (n << 16) | n1;
- }
-}
-
-/* multiple of 20 bytes for ra144 (ugly) */
-#define RAW_PACKET_SIZE 1000
-
-static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos){
- RMContext *rm = s->priv_data;
- ByteIOContext *pb = &s->pb;
- int len, num, res, i;
- AVStream *st;
- uint32_t state=0xFFFFFFFF;
-
- while(!url_feof(pb)){
- *pos= url_ftell(pb);
- if(rm->remaining_len > 0){
- num= rm->current_stream;
- len= rm->remaining_len;
- *timestamp = AV_NOPTS_VALUE;
- *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;
- state= 0xFFFFFFFF;
-
- num = get_be16(pb);
- *timestamp = get_be32(pb);
- res= get_byte(pb); /* reserved */
- *flags = get_byte(pb); /* flags */
-
-
- len -= 12;
- }
- for(i=0;i<s->nb_streams;i++) {
- st = s->streams[i];
- if (num == st->id)
- break;
- }
- if (i == s->nb_streams) {
-skip:
- /* skip packet if unknown number */
- url_fskip(pb, len);
- rm->remaining_len -= len;
- continue;
- }
- *stream_index= i;
-
- return len;
- }
- return -1;
-}
-
-static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
- RMContext *rm = s->priv_data;
- ByteIOContext *pb = &s->pb;
- AVStream *st;
- int i, len, tmp, j;
- int64_t timestamp, pos;
- uint8_t *ptr;
- int flags;
-
- 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=sync(s, ×tamp, &flags, &i, &pos);
- if(len<0)
- return AVERROR_IO;
- st = s->streams[i];
-
- if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- int h, pic_num, len2, pos;
-
- h= get_byte(pb); len--;
- if(!(h & 0x40)){
- seq = get_byte(pb); len--;
- }
-
- if((h & 0xc0) == 0x40){
- len2= pos= 0;
- }else{
- len2 = get_num(pb, &len);
- pos = get_num(pb, &len);
- }
- /* picture number */
- pic_num= get_byte(pb); len--;
- rm->remaining_len= len;
- rm->current_stream= st->id;
-
-// av_log(NULL, AV_LOG_DEBUG, "%X len:%d pos:%d len2:%d pic_num:%d\n",h, len, pos, len2, pic_num);
- if(len2 && len2<len)
- len=len2;
- rm->remaining_len-= len;
- av_get_packet(pb, pkt, len);
-
- } 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_ATRAC3)) {
- int x;
- int sps = rm->sub_packet_size;
- int cfs = rm->coded_framesize;
- int h = rm->sub_packet_h;
- int y = rm->sub_packet_cnt;
- int w = rm->audio_framesize;
-
- if (flags & 2)
- y = rm->sub_packet_cnt = 0;
- if (!y)
- rm->audiotimestamp = timestamp;
-
- switch(st->codec->codec_id) {
- case CODEC_ID_RA_288:
- 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);
- break;
- }
-
- if (++(rm->sub_packet_cnt) < h)
- goto resync;
- else {
- rm->sub_packet_cnt = 0;
- rm->audio_stream_num = i;
- rm->audio_pkt_cnt = h * w / 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);
- 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 %"PRId64" %d\n", timestamp, timestamp*512LL/25, seq);
-
- seq |= (timestamp&~0x3FFF);
- if(seq - timestamp > 0x2000) seq -= 0x4000;
- if(seq - timestamp < -0x2000) seq += 0x4000;
- }
- }
-#endif
- pkt->pts= timestamp;
- if(flags&2){
- pkt->flags |= PKT_FLAG_KEY;
- if((seq&0x7F) == 1)
- av_add_index_entry(st, pos, timestamp, 0, 0, AVINDEX_KEYFRAME);
- }
- }
-
- /* for AC3, needs to swap bytes */
- if (st->codec->codec_id == CODEC_ID_AC3) {
- ptr = pkt->data;
- for(j=0;j<len;j+=2) {
- tmp = ptr[0];
- ptr[0] = ptr[1];
- ptr[1] = tmp;
- ptr += 2;
- }
- }
- return 0;
-}
-
-static int rm_read_close(AVFormatContext *s)
-{
- RMContext *rm = s->priv_data;
-
- av_free(rm->audiobuf);
- return 0;
-}
-
-static int rm_probe(AVProbeData *p)
-{
- /* check file header */
- if ((p->buf[0] == '.' && p->buf[1] == 'R' &&
- p->buf[2] == 'M' && p->buf[3] == 'F' &&
- p->buf[4] == 0 && p->buf[5] == 0) ||
- (p->buf[0] == '.' && p->buf[1] == 'r' &&
- p->buf[2] == 'a' && p->buf[3] == 0xfd))
- return AVPROBE_SCORE_MAX;
- else
- return 0;
-}
-
-static int64_t rm_read_dts(AVFormatContext *s, int stream_index,
- int64_t *ppos, int64_t pos_limit)
-{
- RMContext *rm = s->priv_data;
- int64_t pos, dts;
- int stream_index2, flags, len, h;
-
- pos = *ppos;
-
- if(rm->old_format)
- return AV_NOPTS_VALUE;
-
- url_fseek(&s->pb, pos, SEEK_SET);
- rm->remaining_len=0;
- for(;;){
- int seq=1;
- AVStream *st;
-
- len=sync(s, &dts, &flags, &stream_index2, &pos);
- if(len<0)
- return AV_NOPTS_VALUE;
-
- st = s->streams[stream_index2];
- if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- h= get_byte(&s->pb); len--;
- if(!(h & 0x40)){
- seq = get_byte(&s->pb); len--;
- }
- }
-
- if((flags&2) && (seq&0x7F) == 1){
-// 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;
- }
-
- url_fskip(&s->pb, len);
- }
- *ppos = pos;
- return dts;
-}
-
-#ifdef CONFIG_RM_DEMUXER
-AVInputFormat rm_demuxer = {
- "rm",
- "rm format",
- sizeof(RMContext),
- rm_probe,
- rm_read_header,
- rm_read_packet,
- rm_read_close,
- NULL,
- rm_read_dts,
-};
-#endif
-#ifdef CONFIG_RM_MUXER
-AVOutputFormat rm_muxer = {
- "rm",
- "rm format",
- "application/vnd.rn-realmedia",
- "rm,ra",
- sizeof(RMContext),
- CODEC_ID_AC3,
- CODEC_ID_RV10,
- rm_write_header,
- rm_write_packet,
- rm_write_trailer,
-};
-#endif
--- /dev/null
+/*
+ * "Real" compatible muxer and demuxer.
+ * Copyright (c) 2000, 2001 Fabrice Bellard.
+ *
+ * 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 2.1 of the License, or (at your option) any later version.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef RM_H
+#define RM_H
+
+#include "avformat.h"
+
+
+typedef struct {
+ int nb_packets;
+ int packet_total_size;
+ int packet_max_size;
+ /* codec related output */
+ int bit_rate;
+ float frame_rate;
+ int nb_frames; /* current frame number */
+ int total_frames; /* total number of frames */
+ int num;
+ AVCodecContext *enc;
+} StreamInfo;
+
+typedef struct {
+ StreamInfo streams[2];
+ StreamInfo *audio_stream, *video_stream;
+ int data_pos; /* position of the data after the header */
+ int nb_packets;
+ int old_format;
+ int current_stream;
+ int remaining_len;
+ /// Audio descrambling matrix parameters
+ uint8_t *audiobuf; ///< place to store reordered audio data
+ int64_t audiotimestamp; ///< Audio packet timestamp
+ int sub_packet_cnt; // Subpacket counter, used while reading
+ int sub_packet_size, sub_packet_h, coded_framesize; ///< Descrambling parameters from container
+ 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;
+
+#endif /* RM_H */
--- /dev/null
+/*
+ * "Real" compatible demuxer.
+ * Copyright (c) 2000, 2001 Fabrice Bellard.
+ *
+ * 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 2.1 of the License, or (at your option) any later version.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "avformat.h"
+#include "rm.h"
+
+
+static void get_str(ByteIOContext *pb, char *buf, int buf_size)
+{
+ int len, i;
+ char *q;
+
+ len = get_be16(pb);
+ q = buf;
+ for(i=0;i<len;i++) {
+ if (i < buf_size - 1)
+ *q++ = get_byte(pb);
+ }
+ *q = '\0';
+}
+
+static void get_str8(ByteIOContext *pb, char *buf, int buf_size)
+{
+ int len, i;
+ char *q;
+
+ len = get_byte(pb);
+ q = buf;
+ for(i=0;i<len;i++) {
+ if (i < buf_size - 1)
+ *q++ = get_byte(pb);
+ }
+ *q = '\0';
+}
+
+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[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->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));
+ 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;
+ st->codec->codec_id = CODEC_ID_RA_144;
+ } else {
+ int flavor, sub_packet_h, coded_framesize, sub_packet_size;
+ /* old version (4) */
+ get_be32(pb); /* .ra4 */
+ get_be32(pb); /* data size */
+ get_be16(pb); /* version2 */
+ get_be32(pb); /* header size */
+ flavor= get_be16(pb); /* add codec info / flavor */
+ rm->coded_framesize = coded_framesize = get_be32(pb); /* coded frame size */
+ get_be32(pb); /* ??? */
+ get_be32(pb); /* ??? */
+ get_be32(pb); /* ??? */
+ 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); /* ??? */
+ if (((version >> 16) & 0xff) == 5) {
+ get_be16(pb); get_be16(pb); get_be16(pb); }
+ st->codec->sample_rate = get_be16(pb);
+ get_be32(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 */
+ }
+ st->codec->codec_type = CODEC_TYPE_AUDIO;
+ if (!strcmp(buf, "dnet")) {
+ st->codec->codec_id = CODEC_ID_AC3;
+ } else if (!strcmp(buf, "28_8")) {
+ st->codec->codec_id = CODEC_ID_RA_288;
+ 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")) || (!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);
+ 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),
+ buf);
+ }
+ if (read_all) {
+ 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)
+{
+ RMContext *rm = s->priv_data;
+ AVStream *st;
+
+ rm->old_format = 1;
+ st = av_new_stream(s, 0);
+ if (!st)
+ return -1;
+ return rm_read_audio_stream_info(s, st, 1);
+}
+
+static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap)
+{
+ RMContext *rm = s->priv_data;
+ AVStream *st;
+ ByteIOContext *pb = &s->pb;
+ unsigned int tag, v;
+ int tag_size, size, codec_data_size, i;
+ int64_t codec_pos;
+ unsigned int start_time, duration;
+ char buf[128];
+ int flags = 0;
+
+ tag = get_le32(pb);
+ if (tag == MKTAG('.', 'r', 'a', 0xfd)) {
+ /* very old .ra format */
+ return rm_read_header_old(s, ap);
+ } else if (tag != MKTAG('.', 'R', 'M', 'F')) {
+ return AVERROR_IO;
+ }
+
+ get_be32(pb); /* header size */
+ get_be16(pb);
+ get_be32(pb);
+ get_be32(pb); /* number of headers */
+
+ for(;;) {
+ if (url_feof(pb))
+ goto fail;
+ tag = get_le32(pb);
+ tag_size = get_be32(pb);
+ get_be16(pb);
+#if 0
+ printf("tag=%c%c%c%c (%08x) size=%d\n",
+ (tag) & 0xff,
+ (tag >> 8) & 0xff,
+ (tag >> 16) & 0xff,
+ (tag >> 24) & 0xff,
+ tag,
+ tag_size);
+#endif
+ if (tag_size < 10 && tag != MKTAG('D', 'A', 'T', 'A'))
+ goto fail;
+ switch(tag) {
+ case MKTAG('P', 'R', 'O', 'P'):
+ /* file header */
+ get_be32(pb); /* max bit rate */
+ get_be32(pb); /* avg bit rate */
+ get_be32(pb); /* max packet size */
+ get_be32(pb); /* avg packet size */
+ get_be32(pb); /* nb packets */
+ get_be32(pb); /* duration */
+ get_be32(pb); /* preroll */
+ get_be32(pb); /* index offset */
+ get_be32(pb); /* data offset */
+ get_be16(pb); /* nb streams */
+ flags = get_be16(pb); /* flags */
+ break;
+ case MKTAG('C', 'O', 'N', 'T'):
+ get_str(pb, s->title, sizeof(s->title));
+ get_str(pb, s->author, sizeof(s->author));
+ get_str(pb, s->copyright, sizeof(s->copyright));
+ get_str(pb, s->comment, sizeof(s->comment));
+ break;
+ case MKTAG('M', 'D', 'P', 'R'):
+ st = av_new_stream(s, 0);
+ if (!st)
+ goto fail;
+ st->id = get_be16(pb);
+ get_be32(pb); /* max bit rate */
+ st->codec->bit_rate = get_be32(pb); /* bit rate */
+ get_be32(pb); /* max packet size */
+ get_be32(pb); /* avg packet size */
+ start_time = get_be32(pb); /* start time */
+ get_be32(pb); /* preroll */
+ duration = get_be32(pb); /* duration */
+ st->start_time = start_time;
+ st->duration = duration;
+ get_str8(pb, buf, sizeof(buf)); /* desc */
+ get_str8(pb, buf, sizeof(buf)); /* mimetype */
+ codec_data_size = get_be32(pb);
+ codec_pos = url_ftell(pb);
+ st->codec->codec_type = CODEC_TYPE_DATA;
+ av_set_pts_info(st, 64, 1, 1000);
+
+ v = get_be32(pb);
+ if (v == MKTAG(0xfd, 'a', 'r', '.')) {
+ /* ra type header */
+ if (rm_read_audio_stream_info(s, st, 0))
+ return -1;
+ } else {
+ int fps, fps2;
+ if (get_le32(pb) != MKTAG('V', 'I', 'D', 'O')) {
+ fail1:
+ av_log(st->codec, AV_LOG_ERROR, "Unsupported video codec\n");
+ goto skip;
+ }
+ st->codec->codec_tag = get_le32(pb);
+// av_log(NULL, AV_LOG_DEBUG, "%X %X\n", st->codec->codec_tag, MKTAG('R', 'V', '2', '0'));
+ if ( st->codec->codec_tag != MKTAG('R', 'V', '1', '0')
+ && st->codec->codec_tag != MKTAG('R', 'V', '2', '0')
+ && st->codec->codec_tag != MKTAG('R', 'V', '3', '0')
+ && st->codec->codec_tag != MKTAG('R', 'V', '4', '0'))
+ goto fail1;
+ st->codec->width = get_be16(pb);
+ st->codec->height = get_be16(pb);
+ st->codec->time_base.num= 1;
+ fps= get_be16(pb);
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ 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;
+ 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;
+ case 4: st->codec->codec_id = CODEC_ID_RV40; break;
+ default: goto fail1;
+ }
+ }
+skip:
+ /* skip codec info */
+ size = url_ftell(pb) - codec_pos;
+ url_fskip(pb, codec_data_size - size);
+ break;
+ case MKTAG('D', 'A', 'T', 'A'):
+ goto header_end;
+ default:
+ /* unknown tag: skip it */
+ url_fskip(pb, tag_size - 10);
+ break;
+ }
+ }
+ header_end:
+ rm->nb_packets = get_be32(pb); /* number of packets */
+ if (!rm->nb_packets && (flags & 4))
+ rm->nb_packets = 3600 * 25;
+ get_be32(pb); /* next data header */
+ return 0;
+
+ fail:
+ for(i=0;i<s->nb_streams;i++) {
+ av_free(s->streams[i]);
+ }
+ return AVERROR_IO;
+}
+
+static int get_num(ByteIOContext *pb, int *len)
+{
+ int n, n1;
+
+ n = get_be16(pb);
+ (*len)-=2;
+ if (n >= 0x4000) {
+ return n - 0x4000;
+ } else {
+ n1 = get_be16(pb);
+ (*len)-=2;
+ return (n << 16) | n1;
+ }
+}
+
+/* multiple of 20 bytes for ra144 (ugly) */
+#define RAW_PACKET_SIZE 1000
+
+static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos){
+ RMContext *rm = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ int len, num, res, i;
+ AVStream *st;
+ uint32_t state=0xFFFFFFFF;
+
+ while(!url_feof(pb)){
+ *pos= url_ftell(pb);
+ if(rm->remaining_len > 0){
+ num= rm->current_stream;
+ len= rm->remaining_len;
+ *timestamp = AV_NOPTS_VALUE;
+ *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;
+ state= 0xFFFFFFFF;
+
+ num = get_be16(pb);
+ *timestamp = get_be32(pb);
+ res= get_byte(pb); /* reserved */
+ *flags = get_byte(pb); /* flags */
+
+
+ len -= 12;
+ }
+ for(i=0;i<s->nb_streams;i++) {
+ st = s->streams[i];
+ if (num == st->id)
+ break;
+ }
+ if (i == s->nb_streams) {
+skip:
+ /* skip packet if unknown number */
+ url_fskip(pb, len);
+ rm->remaining_len -= len;
+ continue;
+ }
+ *stream_index= i;
+
+ return len;
+ }
+ return -1;
+}
+
+static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+ RMContext *rm = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ AVStream *st;
+ int i, len, tmp, j;
+ int64_t timestamp, pos;
+ uint8_t *ptr;
+ int flags;
+
+ 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=sync(s, ×tamp, &flags, &i, &pos);
+ if(len<0)
+ return AVERROR_IO;
+ st = s->streams[i];
+
+ if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
+ int h, pic_num, len2, pos;
+
+ h= get_byte(pb); len--;
+ if(!(h & 0x40)){
+ seq = get_byte(pb); len--;
+ }
+
+ if((h & 0xc0) == 0x40){
+ len2= pos= 0;
+ }else{
+ len2 = get_num(pb, &len);
+ pos = get_num(pb, &len);
+ }
+ /* picture number */
+ pic_num= get_byte(pb); len--;
+ rm->remaining_len= len;
+ rm->current_stream= st->id;
+
+// av_log(NULL, AV_LOG_DEBUG, "%X len:%d pos:%d len2:%d pic_num:%d\n",h, len, pos, len2, pic_num);
+ if(len2 && len2<len)
+ len=len2;
+ rm->remaining_len-= len;
+ av_get_packet(pb, pkt, len);
+
+ } 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_ATRAC3)) {
+ int x;
+ int sps = rm->sub_packet_size;
+ int cfs = rm->coded_framesize;
+ int h = rm->sub_packet_h;
+ int y = rm->sub_packet_cnt;
+ int w = rm->audio_framesize;
+
+ if (flags & 2)
+ y = rm->sub_packet_cnt = 0;
+ if (!y)
+ rm->audiotimestamp = timestamp;
+
+ switch(st->codec->codec_id) {
+ case CODEC_ID_RA_288:
+ 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);
+ break;
+ }
+
+ if (++(rm->sub_packet_cnt) < h)
+ goto resync;
+ else {
+ rm->sub_packet_cnt = 0;
+ rm->audio_stream_num = i;
+ rm->audio_pkt_cnt = h * w / 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);
+ 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 %"PRId64" %d\n", timestamp, timestamp*512LL/25, seq);
+
+ seq |= (timestamp&~0x3FFF);
+ if(seq - timestamp > 0x2000) seq -= 0x4000;
+ if(seq - timestamp < -0x2000) seq += 0x4000;
+ }
+ }
+#endif
+ pkt->pts= timestamp;
+ if(flags&2){
+ pkt->flags |= PKT_FLAG_KEY;
+ if((seq&0x7F) == 1)
+ av_add_index_entry(st, pos, timestamp, 0, 0, AVINDEX_KEYFRAME);
+ }
+ }
+
+ /* for AC3, needs to swap bytes */
+ if (st->codec->codec_id == CODEC_ID_AC3) {
+ ptr = pkt->data;
+ for(j=0;j<len;j+=2) {
+ tmp = ptr[0];
+ ptr[0] = ptr[1];
+ ptr[1] = tmp;
+ ptr += 2;
+ }
+ }
+ return 0;
+}
+
+static int rm_read_close(AVFormatContext *s)
+{
+ RMContext *rm = s->priv_data;
+
+ av_free(rm->audiobuf);
+ return 0;
+}
+
+static int rm_probe(AVProbeData *p)
+{
+ /* check file header */
+ if ((p->buf[0] == '.' && p->buf[1] == 'R' &&
+ p->buf[2] == 'M' && p->buf[3] == 'F' &&
+ p->buf[4] == 0 && p->buf[5] == 0) ||
+ (p->buf[0] == '.' && p->buf[1] == 'r' &&
+ p->buf[2] == 'a' && p->buf[3] == 0xfd))
+ return AVPROBE_SCORE_MAX;
+ else
+ return 0;
+}
+
+static int64_t rm_read_dts(AVFormatContext *s, int stream_index,
+ int64_t *ppos, int64_t pos_limit)
+{
+ RMContext *rm = s->priv_data;
+ int64_t pos, dts;
+ int stream_index2, flags, len, h;
+
+ pos = *ppos;
+
+ if(rm->old_format)
+ return AV_NOPTS_VALUE;
+
+ url_fseek(&s->pb, pos, SEEK_SET);
+ rm->remaining_len=0;
+ for(;;){
+ int seq=1;
+ AVStream *st;
+
+ len=sync(s, &dts, &flags, &stream_index2, &pos);
+ if(len<0)
+ return AV_NOPTS_VALUE;
+
+ st = s->streams[stream_index2];
+ if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
+ h= get_byte(&s->pb); len--;
+ if(!(h & 0x40)){
+ seq = get_byte(&s->pb); len--;
+ }
+ }
+
+ if((flags&2) && (seq&0x7F) == 1){
+// 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;
+ }
+
+ url_fskip(&s->pb, len);
+ }
+ *ppos = pos;
+ return dts;
+}
+
+AVInputFormat rm_demuxer = {
+ "rm",
+ "rm format",
+ sizeof(RMContext),
+ rm_probe,
+ rm_read_header,
+ rm_read_packet,
+ rm_read_close,
+ NULL,
+ rm_read_dts,
+};
--- /dev/null
+/*
+ * "Real" compatible muxer.
+ * Copyright (c) 2000, 2001 Fabrice Bellard.
+ *
+ * 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 2.1 of the License, or (at your option) any later version.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "avformat.h"
+#include "rm.h"
+
+/* in ms */
+#define BUFFER_DURATION 0
+
+
+static void put_str(ByteIOContext *s, const char *tag)
+{
+ put_be16(s,strlen(tag));
+ while (*tag) {
+ put_byte(s, *tag++);
+ }
+}
+
+static void put_str8(ByteIOContext *s, const char *tag)
+{
+ put_byte(s, strlen(tag));
+ while (*tag) {
+ put_byte(s, *tag++);
+ }
+}
+
+static void rv10_write_header(AVFormatContext *ctx,
+ int data_size, int index_pos)
+{
+ RMContext *rm = ctx->priv_data;
+ ByteIOContext *s = &ctx->pb;
+ StreamInfo *stream;
+ unsigned char *data_offset_ptr, *start_ptr;
+ const char *desc, *mimetype;
+ int nb_packets, packet_total_size, packet_max_size, size, packet_avg_size, i;
+ int bit_rate, v, duration, flags, data_pos;
+
+ start_ptr = s->buf_ptr;
+
+ put_tag(s, ".RMF");
+ put_be32(s,18); /* header size */
+ put_be16(s,0);
+ put_be32(s,0);
+ put_be32(s,4 + ctx->nb_streams); /* num headers */
+
+ put_tag(s,"PROP");
+ put_be32(s, 50);
+ put_be16(s, 0);
+ packet_max_size = 0;
+ packet_total_size = 0;
+ nb_packets = 0;
+ bit_rate = 0;
+ duration = 0;
+ for(i=0;i<ctx->nb_streams;i++) {
+ StreamInfo *stream = &rm->streams[i];
+ bit_rate += stream->bit_rate;
+ if (stream->packet_max_size > packet_max_size)
+ packet_max_size = stream->packet_max_size;
+ nb_packets += stream->nb_packets;
+ packet_total_size += stream->packet_total_size;
+ /* select maximum duration */
+ v = (int) (1000.0 * (float)stream->total_frames / stream->frame_rate);
+ if (v > duration)
+ duration = v;
+ }
+ put_be32(s, bit_rate); /* max bit rate */
+ put_be32(s, bit_rate); /* avg bit rate */
+ put_be32(s, packet_max_size); /* max packet size */
+ if (nb_packets > 0)
+ packet_avg_size = packet_total_size / nb_packets;
+ else
+ packet_avg_size = 0;
+ put_be32(s, packet_avg_size); /* avg packet size */
+ put_be32(s, nb_packets); /* num packets */
+ put_be32(s, duration); /* duration */
+ put_be32(s, BUFFER_DURATION); /* preroll */
+ put_be32(s, index_pos); /* index offset */
+ /* computation of data the data offset */
+ data_offset_ptr = s->buf_ptr;
+ put_be32(s, 0); /* data offset : will be patched after */
+ put_be16(s, ctx->nb_streams); /* num streams */
+ flags = 1 | 2; /* save allowed & perfect play */
+ 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) +
+ strlen(ctx->comment) + 4 * 2 + 10;
+ put_be32(s,size);
+ put_be16(s,0);
+ put_str(s, ctx->title);
+ 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";
+ codec_data_size = 73;
+ } else {
+ desc = "The Video Stream";
+ mimetype = "video/x-pn-realvideo";
+ codec_data_size = 34;
+ }
+
+ put_tag(s,"MDPR");
+ size = 10 + 9 * 4 + strlen(desc) + strlen(mimetype) + codec_data_size;
+ put_be32(s, size);
+ put_be16(s, 0);
+
+ put_be16(s, i); /* stream number */
+ put_be32(s, stream->bit_rate); /* max bit rate */
+ 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 /
+ stream->nb_packets;
+ else
+ packet_avg_size = 0;
+ put_be32(s, packet_avg_size); /* avg packet size */
+ put_be32(s, 0); /* start time */
+ put_be32(s, BUFFER_DURATION); /* preroll */
+ /* duration */
+ if (url_is_streamed(s) || !stream->total_frames)
+ put_be32(s, (int)(3600 * 1000));
+ else
+ put_be32(s, (int)(stream->total_frames * 1000 / stream->frame_rate));
+ 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 *
+ stream->enc->frame_size) / (8 * sample_rate);
+ /* audio codec info */
+ put_tag(s, ".ra");
+ put_byte(s, 0xfd);
+ put_be32(s, 0x00040000); /* version */
+ put_tag(s, ".ra4");
+ put_be32(s, 0x01b53530); /* stream length */
+ put_be16(s, 4); /* unknown */
+ put_be32(s, 0x39); /* header size */
+
+ switch(sample_rate) {
+ case 48000:
+ case 24000:
+ case 12000:
+ fscode = 1;
+ break;
+ default:
+ case 44100:
+ case 22050:
+ case 11025:
+ fscode = 2;
+ break;
+ case 32000:
+ case 16000:
+ case 8000:
+ fscode = 3;
+ }
+ put_be16(s, fscode); /* codec additional info, for AC3, seems
+ to be a frequency code */
+ /* special hack to compensate rounding errors... */
+ if (coded_frame_size == 557)
+ coded_frame_size--;
+ put_be32(s, coded_frame_size); /* frame length */
+ put_be32(s, 0x51540); /* unknown */
+ put_be32(s, 0x249f0); /* unknown */
+ put_be32(s, 0x249f0); /* unknown */
+ put_be16(s, 0x01);
+ /* frame length : seems to be very important */
+ 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 */
+ put_be16(s, stream->enc->channels);
+ put_str8(s, "Int0"); /* codec name */
+ put_str8(s, "dnet"); /* codec name */
+ put_be16(s, 0); /* title length */
+ put_be16(s, 0); /* author length */
+ put_be16(s, 0); /* copyright length */
+ put_byte(s, 0); /* end of header */
+ } else {
+ /* video codec info */
+ put_be32(s,34); /* size */
+ if(stream->enc->codec_id == CODEC_ID_RV10)
+ put_tag(s,"VIDORV10");
+ else
+ put_tag(s,"VIDORV20");
+ put_be16(s, stream->enc->width);
+ put_be16(s, stream->enc->height);
+ put_be16(s, (int) stream->frame_rate); /* frames per seconds ? */
+ put_be32(s,0); /* unknown meaning */
+ put_be16(s, (int) stream->frame_rate); /* unknown meaning */
+ put_be32(s,0); /* unknown meaning */
+ put_be16(s, 8); /* unknown meaning */
+ /* Seems to be the codec version: only use basic H263. The next
+ 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);
+ else
+ put_be32(s,0x20103001);
+ //put_be32(s,0x10003000);
+ }
+ }
+
+ /* patch data offset field */
+ data_pos = s->buf_ptr - start_ptr;
+ rm->data_pos = data_pos;
+ data_offset_ptr[0] = data_pos >> 24;
+ 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_be16(s,0);
+
+ put_be32(s, nb_packets); /* number of packets */
+ put_be32(s,0); /* next data header */
+}
+
+static void write_packet_header(AVFormatContext *ctx, StreamInfo *stream,
+ int length, int key_frame)
+{
+ int timestamp;
+ ByteIOContext *s = &ctx->pb;
+
+ stream->nb_packets++;
+ stream->packet_total_size += length;
+ if (length > stream->packet_max_size)
+ stream->packet_max_size = length;
+
+ put_be16(s,0); /* version */
+ put_be16(s,length + 12);
+ put_be16(s, stream->num); /* stream number */
+ timestamp = (1000 * (float)stream->nb_frames) / stream->frame_rate;
+ put_be32(s, timestamp); /* timestamp */
+ put_byte(s, 0); /* reserved */
+ put_byte(s, key_frame ? 2 : 0); /* flags */
+}
+
+static int rm_write_header(AVFormatContext *s)
+{
+ RMContext *rm = s->priv_data;
+ StreamInfo *stream;
+ int n;
+ AVCodecContext *codec;
+
+ for(n=0;n<s->nb_streams;n++) {
+ s->streams[n]->id = n;
+ codec = s->streams[n]->codec;
+ stream = &rm->streams[n];
+ memset(stream, 0, sizeof(StreamInfo));
+ stream->num = n;
+ stream->bit_rate = codec->bit_rate;
+ stream->enc = codec;
+
+ switch(codec->codec_type) {
+ case CODEC_TYPE_AUDIO:
+ rm->audio_stream = stream;
+ stream->frame_rate = (float)codec->sample_rate / (float)codec->frame_size;
+ /* XXX: dummy values */
+ stream->packet_max_size = 1024;
+ stream->nb_packets = 0;
+ stream->total_frames = stream->nb_packets;
+ break;
+ case CODEC_TYPE_VIDEO:
+ rm->video_stream = stream;
+ stream->frame_rate = (float)codec->time_base.den / (float)codec->time_base.num;
+ /* XXX: dummy values */
+ stream->packet_max_size = 4096;
+ stream->nb_packets = 0;
+ stream->total_frames = stream->nb_packets;
+ break;
+ default:
+ return -1;
+ }
+ }
+
+ rv10_write_header(s, 0, 0);
+ put_flush_packet(&s->pb);
+ return 0;
+}
+
+static int rm_write_audio(AVFormatContext *s, const uint8_t *buf, int size, int flags)
+{
+ uint8_t *buf1;
+ RMContext *rm = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ StreamInfo *stream = rm->audio_stream;
+ int i;
+
+ /* 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];
+ buf1[i+1] = buf[i];
+ }
+ put_buffer(pb, buf1, size);
+ put_flush_packet(pb);
+ stream->nb_frames++;
+ av_free(buf1);
+ return 0;
+}
+
+static int rm_write_video(AVFormatContext *s, const uint8_t *buf, int size, int flags)
+{
+ RMContext *rm = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+ StreamInfo *stream = rm->video_stream;
+ int key_frame = !!(flags & PKT_FLAG_KEY);
+
+ /* XXX: this is incorrect: should be a parameter */
+
+ /* Well, I spent some time finding the meaning of these bits. I am
+ not sure I understood everything, but it works !! */
+#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);
+ /* bit 7: '1' if I frame. bits 6..0 : sequence number in current
+ frame starting from 1 */
+ if (key_frame) {
+ put_byte(pb, 0x81);
+ } else {
+ 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_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_buffer(pb, buf, size);
+ put_flush_packet(pb);
+
+ stream->nb_frames++;
+ return 0;
+}
+
+static int rm_write_packet(AVFormatContext *s, AVPacket *pkt)
+{
+ 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;
+ int data_size, index_pos, i;
+ ByteIOContext *pb = &s->pb;
+
+ if (!url_is_streamed(&s->pb)) {
+ /* end of file: finish to write header */
+ index_pos = url_fseek(pb, 0, SEEK_CUR);
+ data_size = index_pos - rm->data_pos;
+
+ /* index */
+ 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 */
+ put_be32(pb, 0); /* next index */
+ }
+ /* 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;
+ rv10_write_header(s, data_size, index_pos);
+ } else {
+ /* undocumented end header */
+ put_be32(pb, 0);
+ put_be32(pb, 0);
+ }
+ put_flush_packet(pb);
+ return 0;
+}
+
+
+AVOutputFormat rm_muxer = {
+ "rm",
+ "rm format",
+ "application/vnd.rn-realmedia",
+ "rm,ra",
+ sizeof(RMContext),
+ CODEC_ID_AC3,
+ CODEC_ID_RV10,
+ rm_write_header,
+ rm_write_packet,
+ rm_write_trailer,
+};
projects / platform / upstream / libav.git / commitdiff