/*
* "Real" compatible muxer.
- * Copyright (c) 2000, 2001 Fabrice Bellard.
+ * Copyright (c) 2000, 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
#include "avformat.h"
#include "rm.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 */
+} RMMuxContext;
+
/* in ms */
#define BUFFER_DURATION 0
}
}
-static void rv10_write_header(AVFormatContext *ctx,
- int data_size, int index_pos)
+static int rv10_write_header(AVFormatContext *ctx,
+ int data_size, int index_pos)
{
- RMContext *rm = ctx->priv_data;
+ RMMuxContext *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;
+ AVMetadataTag *tag;
start_ptr = s->buf_ptr;
/* comments */
put_tag(s,"CONT");
- size = strlen(ctx->title) + strlen(ctx->author) + strlen(ctx->copyright) +
- strlen(ctx->comment) + 4 * 2 + 10;
+ size = 4 * 2 + 10;
+ for(i=0; i<FF_ARRAY_ELEMS(ff_rm_metadata); i++) {
+ tag = av_metadata_get(ctx->metadata, ff_rm_metadata[i], NULL, 0);
+ if(tag) size += strlen(tag->value);
+ }
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<FF_ARRAY_ELEMS(ff_rm_metadata); i++) {
+ tag = av_metadata_get(ctx->metadata, ff_rm_metadata[i], NULL, 0);
+ put_str(s, tag ? tag->value : "");
+ }
for(i=0;i<ctx->nb_streams;i++) {
int codec_data_size;
stream = &rm->streams[i];
- if (stream->enc->codec_type == CODEC_TYPE_AUDIO) {
+ if (stream->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
desc = "The Audio Stream";
mimetype = "audio/x-pn-realaudio";
codec_data_size = 73;
put_str8(s, mimetype);
put_be32(s, codec_data_size);
- if (stream->enc->codec_type == CODEC_TYPE_AUDIO) {
+ if (stream->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
int coded_frame_size, fscode, sample_rate;
sample_rate = stream->enc->sample_rate;
coded_frame_size = (stream->enc->bit_rate *
case 8000:
fscode = 3;
}
- put_be16(s, fscode); /* codec additional info, for AC3, seems
+ put_be16(s, fscode); /* codec additional info, for AC-3, seems
to be a frequency code */
/* special hack to compensate rounding errors... */
if (coded_frame_size == 557)
put_be32(s, 0x10); /* unknown */
put_be16(s, stream->enc->channels);
put_str8(s, "Int0"); /* codec name */
- put_str8(s, "dnet"); /* codec name */
+ if (stream->enc->codec_tag) {
+ put_byte(s, 4); /* tag length */
+ put_le32(s, stream->enc->codec_tag);
+ } else {
+ av_log(ctx, AV_LOG_ERROR, "Invalid codec tag\n");
+ return -1;
+ }
put_be16(s, 0); /* title length */
put_be16(s, 0); /* author length */
put_be16(s, 0); /* copyright length */
put_be32(s, nb_packets); /* number of packets */
put_be32(s,0); /* next data header */
+ return 0;
}
static void write_packet_header(AVFormatContext *ctx, StreamInfo *stream,
static int rm_write_header(AVFormatContext *s)
{
- RMContext *rm = s->priv_data;
+ RMMuxContext *rm = s->priv_data;
StreamInfo *stream;
int n;
AVCodecContext *codec;
stream->enc = codec;
switch(codec->codec_type) {
- case CODEC_TYPE_AUDIO:
+ case AVMEDIA_TYPE_AUDIO:
rm->audio_stream = stream;
stream->frame_rate = (float)codec->sample_rate / (float)codec->frame_size;
/* XXX: dummy values */
stream->nb_packets = 0;
stream->total_frames = stream->nb_packets;
break;
- case CODEC_TYPE_VIDEO:
+ case AVMEDIA_TYPE_VIDEO:
rm->video_stream = stream;
stream->frame_rate = (float)codec->time_base.den / (float)codec->time_base.num;
/* XXX: dummy values */
}
}
- rv10_write_header(s, 0, 0);
+ if (rv10_write_header(s, 0, 0))
+ return AVERROR_INVALIDDATA;
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;
+ RMMuxContext *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));
+ write_packet_header(s, stream, size, !!(flags & AV_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];
+ if (stream->enc->codec_id == CODEC_ID_AC3) {
+ /* for AC-3, the words seem 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);
+ } else {
+ put_buffer(pb, buf, size);
}
- put_buffer(pb, buf1, size);
put_flush_packet(pb);
stream->nb_frames++;
av_free(buf1);
static int rm_write_video(AVFormatContext *s, const uint8_t *buf, int size, int flags)
{
- RMContext *rm = s->priv_data;
+ RMMuxContext *rm = s->priv_data;
ByteIOContext *pb = s->pb;
StreamInfo *stream = rm->video_stream;
- int key_frame = !!(flags & PKT_FLAG_KEY);
+ int key_frame = !!(flags & AV_PKT_FLAG_KEY);
/* XXX: this is incorrect: should be a parameter */
static int rm_write_packet(AVFormatContext *s, AVPacket *pkt)
{
if (s->streams[pkt->stream_index]->codec->codec_type ==
- CODEC_TYPE_AUDIO)
+ AVMEDIA_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;
+ RMMuxContext *rm = s->priv_data;
int data_size, index_pos, i;
ByteIOContext *pb = s->pb;
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);
+ /* FIXME: write index */
- 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);
+ rv10_write_header(s, data_size, 0);
} else {
/* undocumented end header */
put_be32(pb, 0);
}
-AVOutputFormat rm_muxer = {
+AVOutputFormat ff_rm_muxer = {
"rm",
- "rm format",
+ NULL_IF_CONFIG_SMALL("RealMedia format"),
"application/vnd.rn-realmedia",
"rm,ra",
- sizeof(RMContext),
+ sizeof(RMMuxContext),
CODEC_ID_AC3,
CODEC_ID_RV10,
rm_write_header,
rm_write_packet,
rm_write_trailer,
+ .codec_tag= (const AVCodecTag* const []){ff_rm_codec_tags, 0},
};
projects / ffmpeg / blobdiff