mirror of
https://github.com/mpv-player/mpv
synced 2025-03-22 19:34:14 +00:00
added read_index_chunk, fixed audio_header parser for version5
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3883 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex
parent
32142c5e6a
commit
c5e0ca225b
@ -49,8 +49,15 @@ Video codecs: (supported by RealPlayer8 for Linux)
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#define MAX_STREAMS 10
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typedef struct {
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int data_chunk_offset; /* i think for seeking */
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/* for seeking */
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int index_chunk_offset;
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int *index_table[MAX_STREAMS];
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int index_table_size[MAX_STREAMS];
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int data_chunk_offset;
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int num_of_packets;
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int current_packet;
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/* stream id table */
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int last_a_stream;
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int a_streams[MAX_STREAMS];
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int last_v_stream;
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@ -66,15 +73,12 @@ static void get_str(int isbyte, demuxer_t *demuxer, char *buf, int buf_size)
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len = stream_read_char(demuxer->stream);
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else
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len = stream_read_word(demuxer->stream);
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#if 1
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q = buf;
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for (i = 0; i < len; i++)
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if (i < (buf_size - 1))
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*q++ = stream_read_char(demuxer->stream);
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*q = 0;
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#else
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stream_read(demuxer->stream, buf, buf_size);
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#endif
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stream_read(demuxer->stream, buf, (len > buf_size) ? buf_size : len);
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if (len > buf_size)
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stream_skip(demuxer->stream, len-buf_size);
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printf("read_str: %d bytes read\n", len);
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}
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static void skip_str(int isbyte, demuxer_t *demuxer)
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@ -91,6 +95,62 @@ static void skip_str(int isbyte, demuxer_t *demuxer)
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printf("skip_str: %d bytes skipped\n", len);
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}
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static void parse_index_chunk(demuxer_t *demuxer)
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{
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real_priv_t *priv = demuxer->priv;
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int origpos = stream_tell(demuxer->stream);
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int i, entries;
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int stream_id = 0;
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printf("Building index table from index chunk (%d)\n",
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priv->index_chunk_offset);
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stream_seek(demuxer->stream, priv->index_chunk_offset);
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stream_skip(demuxer->stream, 4); /* INDX */
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read_index:
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if (stream_id > MAX_STREAMS)
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goto end;
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stream_skip(demuxer->stream, 8); /* unknown */
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entries = stream_read_word(demuxer->stream);
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printf("entries: %d\n", entries);
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if (entries <= 0)
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goto end;
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stream_skip(demuxer->stream, 12); /* unknown */
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// stream_skip(demuxer->stream, 22); /* unknown bytes */
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priv->index_table_size[stream_id] = entries;
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priv->index_table[stream_id] = malloc(priv->index_table_size[stream_id] * sizeof(int));
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for (i = 0; i < entries; i++)
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{
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priv->index_table[stream_id][i] = stream_read_dword(demuxer->stream);
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stream_skip(demuxer->stream, 10); /* unknown bytes */
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/* [position(dword)][unk1(word)][unused(dword)][unk2(word)] */
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printf("Index table: Stream#%d: entry: %d: pos: %d\n",
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stream_id, i, priv->index_table[stream_id][i]);
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}
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demuxer->seekable = 1; /* got index, we're able to seek */
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// stream_seek(demuxer->stream, stream_tell(demuxer->stream)-7);
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/* search next index table for other stream */
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i = stream_read_word(demuxer->stream);
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printf("pos: %d, next tag: %.4s\n", stream_tell(demuxer->stream), &i);
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if (i == MKTAG('I', 'N', 'D', 'X'))
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{
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stream_id++;
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goto read_index;
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}
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end:
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if (entries == -256)
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stream_reset(demuxer->stream);
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stream_seek(demuxer->stream, origpos);
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}
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int real_check_file(demuxer_t* demuxer)
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{
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real_priv_t *priv;
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@ -127,7 +187,9 @@ int demux_real_fill_buffer(demuxer_t *demuxer)
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// printf("num_of_packets: %d\n", priv->num_of_packets);
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loop:
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if (priv->num_of_packets == 0)
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if ((priv->num_of_packets == 0) && (priv->num_of_packets != -10))
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return 0; /* EOF */
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if (priv->current_packet > priv->num_of_packets)
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return 0; /* EOF */
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stream_skip(demuxer->stream, 2); /* version */
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len = stream_read_word(demuxer->stream);
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@ -147,10 +209,12 @@ loop:
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/* flags: */
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/* 0x2 - keyframe */
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// printf("packet#%d: len: %d, stream_id: %d, timestamp: %d, flags: %x\n",
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// priv->num_of_packets, len, stream_id, timestamp, flags);
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// printf("packet#%d: pos: %d, len: %d, stream_id: %d, timestamp: %d, flags: %x\n",
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// priv->current_packet, stream_tell(demuxer->stream)-12, len, stream_id, timestamp, flags);
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priv->num_of_packets--;
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// if (priv->num_of_packets != -10)
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// priv->num_of_packets--;
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priv->current_packet++;
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len -= 12;
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/* check if stream_id is audio stream */
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@ -228,7 +292,9 @@ void demux_open_real(demuxer_t* demuxer)
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stream_skip(demuxer->stream, 4); /* nb packets */
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stream_skip(demuxer->stream, 4); /* duration */
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stream_skip(demuxer->stream, 4); /* preroll */
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stream_skip(demuxer->stream, 4); /* index offset */
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// stream_skip(demuxer->stream, 4); /* index offset */
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priv->index_chunk_offset = stream_read_dword(demuxer->stream);
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printf("Index chunk offset: 0x%x\n", priv->index_chunk_offset);
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// stream_skip(demuxer->stream, 4); /* data offset */
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priv->data_chunk_offset = stream_read_dword(demuxer->stream)+10;
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printf("Data chunk offset: 0x%x\n", priv->data_chunk_offset);
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@ -270,6 +336,7 @@ void demux_open_real(demuxer_t* demuxer)
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{
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buf = malloc(len+1);
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stream_read(demuxer->stream, buf, len);
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buf[len] = 0;
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demux_info_add(demuxer, "author", buf);
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free(buf);
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}
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@ -279,6 +346,7 @@ void demux_open_real(demuxer_t* demuxer)
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{
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buf = malloc(len+1);
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stream_read(demuxer->stream, buf, len);
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buf[len] = 0;
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demux_info_add(demuxer, "copyright", buf);
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free(buf);
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}
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@ -288,6 +356,7 @@ void demux_open_real(demuxer_t* demuxer)
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{
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buf = malloc(len+1);
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stream_read(demuxer->stream, buf, len);
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buf[len] = 0;
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demux_info_add(demuxer, "comment", buf);
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free(buf);
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}
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@ -330,9 +399,12 @@ void demux_open_real(demuxer_t* demuxer)
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sh_audio_t *sh = new_sh_audio(demuxer, stream_id);
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char buf[128]; /* for codec name */
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int frame_size;
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int version;
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printf("Found audio stream!\n");
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stream_skip(demuxer->stream, 2); /* version (4 or 5) */
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version = stream_read_word(demuxer->stream);
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printf("version: %d\n", version);
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// stream_skip(demuxer->stream, 2); /* version (4 or 5) */
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stream_skip(demuxer->stream, 2);
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stream_skip(demuxer->stream, 4); /* .ra4 or .ra5 */
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stream_skip(demuxer->stream, 4);
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@ -348,23 +420,32 @@ void demux_open_real(demuxer_t* demuxer)
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frame_size = stream_read_word(demuxer->stream);
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printf("frame_size: %d\n", frame_size);
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stream_skip(demuxer->stream, 4);
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if (version == 5)
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stream_skip(demuxer->stream, 6);
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sh->samplerate = stream_read_word(demuxer->stream);
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stream_skip(demuxer->stream, 4);
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sh->channels = stream_read_word(demuxer->stream);
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printf("samplerate: %d, channels: %d\n",
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sh->samplerate, sh->channels);
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/* Desc #1 */
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skip_str(1, demuxer);
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/* Desc #2 */
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get_str(1, demuxer, buf, sizeof(buf));
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if (version == 5)
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{
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stream_skip(demuxer->stream, 4);
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stream_read(demuxer->stream, buf, 4);
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}
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else
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{
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/* Desc #1 */
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skip_str(1, demuxer);
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/* Desc #2 */
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get_str(1, demuxer, buf, sizeof(buf));
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}
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tmp = 1; /* supported audio codec */
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switch (MKTAG(buf[0], buf[1], buf[2], buf[3]))
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{
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case MKTAG('a', 't', 'r', 'c'):
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break;
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case MKTAG('d', 'n', 'e', 't'):
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printf("Audio: DNET -> AC3\n");
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sh->format = 0x2000;
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@ -377,6 +458,7 @@ void demux_open_real(demuxer_t* demuxer)
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printf("Audio: Real's GeneralCooker (unsupported)\n");
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tmp = 0;
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break;
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case MKTAG('a', 't', 'r', 'c'):
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default:
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printf("Audio: Unknown (%s)\n", buf);
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tmp = 0;
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@ -445,6 +527,7 @@ void demux_open_real(demuxer_t* demuxer)
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/* h263 hack */
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tmp = stream_read_dword(demuxer->stream);
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printf("H.263 ID: %x\n", tmp);
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switch (tmp)
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{
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case 0x10000000:
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@ -500,9 +583,15 @@ header_end:
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printf("Packets in file: %d\n", priv->num_of_packets);
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if (priv->num_of_packets == 0)
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priv->num_of_packets = -10;
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/* disable seeking */
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demuxer->seekable = 0;
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if (priv->index_chunk_offset && (index_mode == 1) || (index_mode == 2))
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parse_index_chunk(demuxer);
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fail:
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return;
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}
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@ -516,3 +605,40 @@ void demux_close_real(demuxer_t *demuxer)
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return;
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}
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#if 0
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/* will complete it later - please upload RV10 samples WITH INDEX CHUNK */
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int demux_seek_real(demuxer_t *demuxer, float rel_seek_secs, int flags)
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{
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real_priv_t *priv = demuxer->priv;
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demux_stream_t *d_audio = demuxer->audio;
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demux_stream_t *d_video = demuxer->video;
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sh_audio_t *sh_audio = d_audio->sh;
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sh_video_t *sh_video = d_video->sh;
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int rel_seek_frames = sh->fps*rel_seek_secs;
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int video_chunk_pos = d_video->pos;
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int stream_id = 0;
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#if 0
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if (flags & 1)
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/* seek absolute */
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video_chunk_pos = 0;
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if (flags & 2)
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{
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int total = sh_video->video.dwLength;
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rel_seek_frames
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}
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#endif
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if (rel_seek_frames > 0)
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{
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/* seek forward */
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for (i = 0; i < index_table_size[stream_id]; i++)
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{
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if (index_table[stream_id][i]
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}
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}
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}
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#endif
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