mirror of
https://github.com/mpv-player/mpv
synced 2025-03-21 18:57:35 +00:00
added real demuxer
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3778 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex
parent
e572f3acf2
commit
33d4706409
@ -3,7 +3,7 @@ LIBNAME = libmpdemux.a
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include ../config.mak
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SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c aviwrite.c demux_asf.c demux_avi.c demux_mov.c demux_mpg.c demux_viv.c demuxer.c dvdauth.c open.c parse_es.c stream.c tv.c tvi_dummy.c tvi_v4l.c frequencies.c demux_fli.c
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SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c aviwrite.c demux_asf.c demux_avi.c demux_mov.c demux_mpg.c demux_viv.c demuxer.c dvdauth.c open.c parse_es.c stream.c tv.c tvi_dummy.c tvi_v4l.c frequencies.c demux_fli.c demux_real.c
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ifeq ($(STREAMING),yes)
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SRCS += asf_streaming.c url.c http.c network.c rtp.c
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endif
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402
libmpdemux/demux_real.c
Normal file
402
libmpdemux/demux_real.c
Normal file
@ -0,0 +1,402 @@
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/*
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Real parser & demuxer
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(C) Alex Beregszaszi <alex@naxine.org>
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Based on FFmpeg's libav/rm.c.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "stream.h"
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#include "demuxer.h"
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#include "stheader.h"
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#include "bswap.h"
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#define MKTAG(a, b, c, d) (a | (b << 8) | (c << 16) | (d << 24))
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#define MAX_STREAMS 10
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typedef struct {
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int num_of_packets;
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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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int v_streams[MAX_STREAMS];
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} real_priv_t;
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static void get_str(int isbyte, demuxer_t *demuxer, char *buf, int buf_size)
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{
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int len, i;
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char *q;
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if (isbyte)
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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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}
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static void skip_str(int isbyte, demuxer_t *demuxer)
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{
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int len;
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if (isbyte)
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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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stream_skip(demuxer->stream, len);
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printf("skip_str: %d bytes skipped\n", len);
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}
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int real_check_file(demuxer_t* demuxer){
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real_priv_t *priv;
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int c;
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mp_msg(MSGT_DEMUX,MSGL_V,"Checking for REAL\n");
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c = stream_read_dword_le(demuxer->stream);
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if (c == -256)
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return 0; /* EOF */
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if (c != MKTAG('.', 'R', 'M', 'F'))
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return 0; /* bad magic */
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priv = malloc(sizeof(real_priv_t));
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memset(priv, 0, sizeof(real_priv_t));
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demuxer->priv = priv;
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return 1;
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}
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// return value:
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// 0 = EOF or no stream found
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// 1 = successfully read a packet
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int demux_real_fill_buffer(demuxer_t *demuxer)
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{
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real_priv_t *priv = demuxer->priv;
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demux_stream_t *ds = NULL;
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int len;
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int timestamp;
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int stream_id;
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int i;
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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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return 0; /* EOF */
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stream_skip(demuxer->stream, 2);
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len = stream_read_word(demuxer->stream);
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if (len == -256) /* EOF */
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return 0;
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if (len < 12)
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{
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printf("bad packet len (%d)\n", len);
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stream_skip(demuxer->stream, len);
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goto loop;
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// return 0; /* bad packet */
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}
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stream_id = stream_read_word(demuxer->stream);
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timestamp = stream_read_dword(demuxer->stream);
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// printf("packet: len: %d, stream_id: %d, timestamp: %d\n",
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// len, stream_id, timestamp);
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stream_skip(demuxer->stream, 1); /* reserved */
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stream_skip(demuxer->stream, 1); /* flags */
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priv->num_of_packets--;
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len -= 12;
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/* check if stream_id is audio stream */
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for (i = 0; i < priv->last_a_stream; i++)
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{
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if (priv->a_streams[i] == stream_id)
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{
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// printf("packet is audio (id: %d)\n", stream_id);
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ds = demuxer->audio; /* FIXME */
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break;
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}
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}
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/* check if stream_id is video stream */
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for (i = 0; i < priv->last_v_stream; i++)
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{
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if (priv->v_streams[i] == stream_id)
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{
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// printf("packet is video (id: %d)\n", stream_id);
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ds = demuxer->video; /* FIXME */
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break;
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}
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}
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/* id not found */
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if (ds == NULL)
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{
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printf("unknown stream id (%d)\n", stream_id);
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stream_skip(demuxer->stream, len);
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goto loop;
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}
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demuxer->filepos = stream_tell(demuxer->stream);
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ds_read_packet(ds, demuxer->stream, len, timestamp/90000.0f, demuxer->filepos, 0);
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return 1;
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}
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void demux_open_real(demuxer_t* demuxer)
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{
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real_priv_t* priv = demuxer->priv;
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int num_of_headers;
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int i;
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stream_skip(demuxer->stream, 4); /* header size */
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stream_skip(demuxer->stream, 2);
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stream_skip(demuxer->stream, 4);
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num_of_headers = stream_read_dword(demuxer->stream);
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// stream_skip(demuxer->stream, 4); /* number of headers */
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/* parse chunks */
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for (i = 1; i < num_of_headers; i++)
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{
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int chunk, chunk_size;
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chunk = stream_read_dword_le(demuxer->stream);
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chunk_size = stream_read_dword(demuxer->stream);
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stream_skip(demuxer->stream, 2);
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if (chunk_size < 10)
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goto fail;
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printf("Chunk: %.4s (size: %d)\n",
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(char *)&chunk, chunk_size);
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switch(chunk)
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{
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case MKTAG('P', 'R', 'O', 'P'):
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printf("Properties chunk\n");
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stream_skip(demuxer->stream, 4); /* max bitrate */
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stream_skip(demuxer->stream, 4); /* avg bitrate */
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stream_skip(demuxer->stream, 4); /* max packet size */
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stream_skip(demuxer->stream, 4); /* avg packet size */
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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); /* data offset */
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stream_skip(demuxer->stream, 2); /* nb streams */
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stream_skip(demuxer->stream, 2); /* flags */
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break;
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case MKTAG('C', 'O', 'N', 'T'):
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printf("Broadcasting informations (title, author, copyright, comment)\n");
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skip_str(0, demuxer); /* title */
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skip_str(0, demuxer); /* author */
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skip_str(0, demuxer); /* copyright */
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skip_str(0, demuxer); /* comment */
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break;
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case MKTAG('M', 'D', 'P', 'R'):
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{
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/* new stream */
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int stream_id;
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int bitrate;
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int codec_data_size;
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int codec_pos;
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int v;
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stream_id = stream_read_word(demuxer->stream);
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printf("Found new stream (id: %d)\n", stream_id);
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stream_skip(demuxer->stream, 4); /* max bitrate */
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bitrate = stream_read_dword(demuxer->stream); /* bitrate */
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stream_skip(demuxer->stream, 4); /* max packet size */
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stream_skip(demuxer->stream, 4); /* avg packet size */
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stream_skip(demuxer->stream, 4); /* start time */
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stream_skip(demuxer->stream, 4); /* preroll */
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stream_skip(demuxer->stream, 4); /* duration */
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skip_str(1, demuxer); /* stream description */
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skip_str(1, demuxer); /* mimetype */
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codec_data_size = stream_read_dword(demuxer->stream);
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codec_pos = stream_tell(demuxer->stream);
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v = stream_read_dword(demuxer->stream);
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if (v == MKTAG(0xfd, 'a', 'r', '.')) /* audio header */
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{
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sh_audio_t *sh = new_sh_audio(demuxer, stream_id);
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printf("Found audio stream!\n");
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stream_skip(demuxer->stream, 4); /* version */
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stream_skip(demuxer->stream, 4); /* .ra4 */
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stream_skip(demuxer->stream, 4);
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stream_skip(demuxer->stream, 2);
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stream_skip(demuxer->stream, 4); /* header size */
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stream_skip(demuxer->stream, 2); /* add codec info */
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stream_skip(demuxer->stream, 4); /* coded frame size */
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stream_skip(demuxer->stream, 4);
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stream_skip(demuxer->stream, 4);
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stream_skip(demuxer->stream, 4);
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stream_skip(demuxer->stream, 2); /* 1 */
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stream_skip(demuxer->stream, 2); /* coded frame size */
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stream_skip(demuxer->stream, 4);
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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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{
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char buf[128];
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get_str(1, demuxer, buf, sizeof(buf));
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get_str(1, demuxer, buf, sizeof(buf));
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v = 0; /* not supported audio codec */
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if (!strcmp(buf, "dnet"))
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{
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printf("Found AC3 audio\n");
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sh->format = 0x2000; /* ac3 */
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v = 1;
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}
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}
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// skip_str(1, demuxer); /* desc */
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// skip_str(1, demuxer); /* desc */
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/* the audio codec name is stored in desc */
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/* available codecs: DNET -> ac3 */
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// sh->format = 0x2000; /* ac3 */
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if (v)
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{
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printf("Audio codec: 0x%x\n", sh->format);
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/* insert as stream */
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demuxer->audio->sh = sh;
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sh->ds = demuxer->audio;
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demuxer->audio->id = stream_id;
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if (priv->last_a_stream+1 < MAX_STREAMS)
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{
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priv->a_streams[priv->last_a_stream] = stream_id;
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priv->last_a_stream++;
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}
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}
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}
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else
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{
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/* video header */
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sh_video_t *sh = new_sh_video(demuxer, stream_id);
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v = stream_read_dword_le(demuxer->stream);
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printf("video: %.4s (%x)\n", (char *)&v, v);
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if (v != MKTAG('V', 'I', 'D', 'O'))
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{
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mp_msg(MSGT_DEMUX, MSGL_ERR, "Unsupported video codec\n");
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goto skip_this_chunk;
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}
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sh->format = stream_read_dword_le(demuxer->stream); /* fourcc */
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printf("video fourcc: %.4s (%x)\n", (char *)&sh->format, sh->format);
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// emulate BITMAPINFOHEADER:
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sh->bih = malloc(sizeof(BITMAPINFOHEADER));
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memset(sh->bih, 0, sizeof(BITMAPINFOHEADER));
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sh->bih->biSize = 40;
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sh->disp_w = sh->bih->biWidth = stream_read_word(demuxer->stream);
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sh->disp_h = sh->bih->biHeight = stream_read_word(demuxer->stream);
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sh->bih->biPlanes = 1;
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sh->bih->biBitCount = 24;
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sh->bih->biCompression = sh->format;
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sh->bih->biSizeImage= sh->bih->biWidth*sh->bih->biHeight*3;
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sh->fps = stream_read_word(demuxer->stream);
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sh->frametime = 1.0f/sh->fps;
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stream_skip(demuxer->stream, 4);
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stream_skip(demuxer->stream, 2);
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stream_skip(demuxer->stream, 4);
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stream_skip(demuxer->stream, 2);
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/* h263 hack */
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v = stream_read_dword(demuxer->stream);
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switch (v)
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{
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case 0x10000000:
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/* sub id: 0 */
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/* codec id: rv10 */
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break;
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case 0x10003000:
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case 0x10003001:
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/* sub id: 3 */
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/* codec id: rv10 */
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break;
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case 0x20001000:
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/* codec id: rv20 */
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break;
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default:
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/* codec id: none */
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}
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/* insert as stream */
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demuxer->video->sh = sh;
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sh->ds = demuxer->video;
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demuxer->video->id = stream_id;
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if (priv->last_v_stream+1 < MAX_STREAMS)
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{
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priv->v_streams[priv->last_v_stream] = stream_id;
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priv->last_v_stream++;
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}
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}
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skip_this_chunk:
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/* skip codec info */
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v = stream_tell(demuxer->stream) - codec_pos;
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stream_skip(demuxer->stream, codec_data_size - v);
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break;
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}
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case MKTAG('D', 'A', 'T', 'A'):
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goto header_end;
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default:
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printf("Unknown chunk: %x\n", chunk);
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stream_skip(demuxer->stream, chunk_size - 10);
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break;
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}
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}
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header_end:
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priv->num_of_packets = stream_read_dword(demuxer->stream);
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// stream_skip(demuxer->stream, 4); /* number of packets */
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stream_skip(demuxer->stream, 4); /* next data header */
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printf("Packets in file: %d\n", priv->num_of_packets);
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/* disable seeking */
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demuxer->seekable = 0;
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fail:
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return;
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}
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void demux_close_real(demuxer_t *demuxer)
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{
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real_priv_t* priv = demuxer->priv;
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if (priv)
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free(priv);
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return;
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}
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@ -159,6 +159,7 @@ int demux_avi_fill_buffer_nini(demuxer_t *demux,demux_stream_t *ds);
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int demux_asf_fill_buffer(demuxer_t *demux);
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int demux_mov_fill_buffer(demuxer_t *demux,demux_stream_t* ds);
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int demux_vivo_fill_buffer(demuxer_t *demux);
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int demux_real_fill_buffer(demuxer_t *demux);
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#ifdef USE_TV
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#include "tv.h"
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extern tvi_handle_t *tv_handler;
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@ -181,6 +182,7 @@ int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds){
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case DEMUXER_TYPE_ASF: return demux_asf_fill_buffer(demux);
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case DEMUXER_TYPE_MOV: return demux_mov_fill_buffer(demux,ds);
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case DEMUXER_TYPE_VIVO: return demux_vivo_fill_buffer(demux);
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case DEMUXER_TYPE_REAL: return demux_real_fill_buffer(demux);
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#ifdef USE_TV
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case DEMUXER_TYPE_TV: return demux_tv_fill_buffer(demux, tv_handler);
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#endif
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@ -362,6 +364,9 @@ int demux_open_fli(demuxer_t* demuxer);
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extern int vivo_check_file(demuxer_t *demuxer);
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extern void demux_open_vivo(demuxer_t *demuxer);
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extern int real_check_file(demuxer_t *demuxer);
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extern void demux_open_real(demuxer_t *demuxer);
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demuxer_t* demux_open(stream_t *stream,int file_format,int audio_id,int video_id,int dvdsub_id){
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//int file_format=(*file_format_ptr);
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@ -425,6 +430,14 @@ if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_VIVO){
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||||
file_format=DEMUXER_TYPE_VIVO;
|
||||
}
|
||||
}
|
||||
//=============== Try to open as REAL file: =================
|
||||
if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_REAL){
|
||||
demuxer=new_demuxer(stream,DEMUXER_TYPE_REAL,audio_id,video_id,dvdsub_id);
|
||||
if(real_check_file(demuxer)){
|
||||
mp_msg(MSGT_DEMUXER,MSGL_INFO,"Detected REAL file format!\n");
|
||||
file_format=DEMUXER_TYPE_REAL;
|
||||
}
|
||||
}
|
||||
//=============== Try to open as FLI file: =================
|
||||
if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_FLI){
|
||||
demuxer=new_demuxer(stream,DEMUXER_TYPE_FLI,audio_id,video_id,dvdsub_id);
|
||||
@ -530,6 +543,10 @@ switch(file_format){
|
||||
demux_open_vivo(demuxer);
|
||||
break;
|
||||
}
|
||||
case DEMUXER_TYPE_REAL: {
|
||||
demux_open_real(demuxer);
|
||||
break;
|
||||
}
|
||||
case DEMUXER_TYPE_ASF: {
|
||||
//---- ASF header:
|
||||
read_asf_header(demuxer);
|
||||
|
||||
@ -13,6 +13,7 @@
|
||||
#define DEMUXER_TYPE_VIVO 8
|
||||
#define DEMUXER_TYPE_TV 9
|
||||
#define DEMUXER_TYPE_FLI 10
|
||||
#define DEMUXER_TYPE_REAL 11
|
||||
|
||||
#define DEMUXER_TIME_NONE 0
|
||||
#define DEMUXER_TIME_PTS 1
|
||||
|
||||
Loading…
Reference in New Issue
Block a user