mirror of https://github.com/mpv-player/mpv
implemented RoQ file demuxing
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4452 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
melanson
parent
6bd8125163
commit
becadc7046
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@ -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 demux_real.c demux_y4m.c yuv4mpeg.c yuv4mpeg_ratio.c demux_nuv.c demux_film.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 demux_y4m.c yuv4mpeg.c yuv4mpeg_ratio.c demux_nuv.c demux_film.c demux_roq.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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@ -0,0 +1,224 @@
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/*
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RoQ file demuxer for the MPlayer program
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by Mike Melanson
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based on Dr. Tim Ferguson's RoQ document found at:
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http://www.csse.monash.edu.au/~timf/videocodec.html
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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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#define RoQ_INFO 0x1001
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#define RoQ_QUAD_CODEBOOK 0x1002
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#define RoQ_QUAD_VQ 0x1011
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#define RoQ_SOUND_MONO 0x1020
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#define RoQ_SOUND_STEREO 0x1021
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#define CHUNK_TYPE_AUDIO 0
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#define CHUNK_TYPE_VIDEO 1
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#define RoQ_FPS 24
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typedef struct roq_chunk_t
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{
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int chunk_type;
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off_t chunk_offset;
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int chunk_size;
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} roq_chunk_t;
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typedef struct roq_data_t
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{
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int total_chunks;
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int current_chunk;
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roq_chunk_t *chunks;
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} roq_data_t;
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// Check if a stream qualifies as a RoQ file based on the magic numbers
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// at the start of the file:
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// 84 10 FF FF FF FF 1E 00
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int roq_check_file(demuxer_t *demuxer)
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{
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stream_reset(demuxer->stream);
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stream_seek(demuxer->stream, 0);
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if ((stream_read_dword(demuxer->stream) == 0x8410FFFF) &&
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(stream_read_dword(demuxer->stream) == 0xFFFF1E00))
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return 1;
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else
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return 0;
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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_roq_fill_buffer(demuxer_t *demuxer)
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{
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roq_data_t *roq_data = (roq_data_t *)demuxer->priv;
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roq_chunk_t roq_chunk;
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demux_stream_t *ds;
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if (roq_data->current_chunk >= roq_data->total_chunks)
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return 0;
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roq_chunk = roq_data->chunks[roq_data->current_chunk];
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if (roq_chunk.chunk_type == CHUNK_TYPE_AUDIO)
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ds = demuxer->audio;
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else
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ds = demuxer->video;
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// make sure we're at the right place in the stream and fetch the chunk
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stream_seek(demuxer->stream, roq_chunk.chunk_offset);
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ds_read_packet(
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ds,
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demuxer->stream,
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roq_chunk.chunk_size,
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// roq_data->current_frame/sh_video->fps,
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0,
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roq_chunk.chunk_offset,
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0
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);
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roq_data->current_chunk++;
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return 1;
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}
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demuxer_t* demux_open_roq(demuxer_t* demuxer)
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{
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sh_video_t *sh_video = NULL;
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sh_audio_t *sh_audio = NULL;
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roq_data_t *roq_data = (roq_data_t *)malloc(sizeof(roq_data_t));
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int chunk_id;
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int chunk_size;
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int chunk_arg1;
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int chunk_arg2;
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int chunk_counter = 0;
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int last_chunk_id = 0;
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roq_data->chunks = NULL;
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// position the stream and start traversing
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stream_seek(demuxer->stream, 8);
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while (!stream_eof(demuxer->stream))
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{
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chunk_id = stream_read_word_le(demuxer->stream);
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chunk_size = stream_read_word_le(demuxer->stream);
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chunk_arg1 = stream_read_word_le(demuxer->stream);
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chunk_arg2 = stream_read_word_le(demuxer->stream);
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// this is the only useful header info in the file
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if (chunk_id == RoQ_INFO)
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{
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// there should only be one RoQ_INFO chunk per file
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if (sh_video)
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{
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mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Found more than one RoQ_INFO chunk\n");
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stream_skip(demuxer->stream, 8);
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}
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else
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{
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// make the header first
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sh_video = new_sh_video(demuxer, 0);
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// make sure the demuxer knows about the new stream header
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demuxer->video->sh = sh_video;
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// make sure that the video demuxer stream header knows about its
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// parent video demuxer stream
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sh_video->ds = demuxer->video;
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// this is a good opportunity to create a video stream header
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sh_video->disp_w = stream_read_word_le(demuxer->stream);
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sh_video->disp_h = stream_read_word_le(demuxer->stream);
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stream_skip(demuxer->stream, 4);
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// custom fourcc for internal MPlayer use
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sh_video->format = mmioFOURCC('R', 'o', 'Q', 'V');
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// constant frame rate
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sh_video->fps = RoQ_FPS;
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sh_video->frametime = 1 / RoQ_FPS;
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}
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}
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else if ((chunk_id == RoQ_SOUND_MONO) ||
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(chunk_id == RoQ_SOUND_STEREO))
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{
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// create the audio stream header if it hasn't been created it
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if (sh_audio == NULL)
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{
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// make the header first
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sh_audio = new_sh_audio(demuxer, 0);
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// make sure the demuxer knows about the new stream header
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demuxer->audio->sh = sh_audio;
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// make sure that the audio demuxer stream header knows about its
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// parent audio demuxer stream
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sh_audio->ds = demuxer->audio;
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// custom fourcc for internal MPlayer use
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sh_audio->format = mmioFOURCC('R', 'o', 'Q', 'A');
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// assume it's mono until there's reason to believe otherwise
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sh_audio->channels = 1;
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// always 22KHz, 16-bit
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sh_audio->samplerate = 22050;
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sh_audio->samplesize = 2;
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}
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// if it's stereo, promote the channel number
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if (chunk_id == RoQ_SOUND_STEREO)
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sh_audio->channels = 2;
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// index the chunk
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roq_data->chunks = (roq_chunk_t *)realloc(roq_data->chunks,
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(chunk_counter + 1) * sizeof (roq_chunk_t));
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roq_data->chunks[chunk_counter].chunk_type = CHUNK_TYPE_AUDIO;
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roq_data->chunks[chunk_counter].chunk_offset =
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stream_tell(demuxer->stream) - 8;
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roq_data->chunks[chunk_counter].chunk_size = chunk_size + 8;
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stream_skip(demuxer->stream, chunk_size);
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chunk_counter++;
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}
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else if ((chunk_id == RoQ_QUAD_CODEBOOK) ||
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((chunk_id == RoQ_QUAD_VQ) && (last_chunk_id != RoQ_QUAD_CODEBOOK)))
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{
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// index a new chunk if it's a codebook or quad VQ not following a
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// codebook
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roq_data->chunks = (roq_chunk_t *)realloc(roq_data->chunks,
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(chunk_counter + 1) * sizeof (roq_chunk_t));
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roq_data->chunks[chunk_counter].chunk_type = CHUNK_TYPE_VIDEO;
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roq_data->chunks[chunk_counter].chunk_offset =
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stream_tell(demuxer->stream) - 8;
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roq_data->chunks[chunk_counter].chunk_size = chunk_size + 8;
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stream_skip(demuxer->stream, chunk_size);
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chunk_counter++;
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}
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else if ((chunk_id == RoQ_QUAD_VQ) && (last_chunk_id == RoQ_QUAD_CODEBOOK))
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{
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// if it's a quad VQ chunk following a codebook chunk, extend the last
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// chunk
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roq_data->chunks[chunk_counter - 1].chunk_size += (chunk_size + 8);
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stream_skip(demuxer->stream, chunk_size);
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}
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else
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{
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mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Unknown RoQ chunk ID: %04X\n", chunk_id);
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}
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last_chunk_id = chunk_id;
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}
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roq_data->total_chunks = chunk_counter;
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roq_data->current_chunk = 0;
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demuxer->priv = roq_data;
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return demuxer;
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}
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@ -150,6 +150,7 @@ void ds_read_packet(demux_stream_t *ds,stream_t *stream,int len,float pts,off_t
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// return value:
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// 0 = EOF or no stream found or invalid type
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// 1 = successfully read a packet
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int demux_roq_fill_buffer(demuxer_t *demux);
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int demux_film_fill_buffer(demuxer_t *demux);
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int demux_fli_fill_buffer(demuxer_t *demux);
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int demux_mpg_es_fill_buffer(demuxer_t *demux);
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@ -176,6 +177,7 @@ int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds){
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// Note: parameter 'ds' can be NULL!
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// printf("demux->type=%d\n",demux->type);
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switch(demux->type){
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case DEMUXER_TYPE_ROQ: return demux_roq_fill_buffer(demux);
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case DEMUXER_TYPE_FILM: return demux_film_fill_buffer(demux);
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case DEMUXER_TYPE_FLI: return demux_fli_fill_buffer(demux);
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case DEMUXER_TYPE_MPEG_ES: return demux_mpg_es_fill_buffer(demux);
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@ -367,11 +369,13 @@ int mov_check_file(demuxer_t* demuxer);
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int mov_read_header(demuxer_t* demuxer);
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int demux_open_fli(demuxer_t* demuxer);
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int demux_open_film(demuxer_t* demuxer);
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int demux_open_roq(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 y4m_check_file(demuxer_t *demuxer);
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extern void demux_open_y4m(demuxer_t *demuxer);
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extern int roq_check_file(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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@ -462,7 +466,7 @@ if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_VIVO){
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if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_REAL){
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demuxer=new_demuxer(stream,DEMUXER_TYPE_REAL,audio_id,video_id,dvdsub_id);
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if(real_check_file(demuxer)){
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mp_msg(MSGT_DEMUXER,MSGL_INFO,"Detected REAL file format!\n");
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mp_msg(MSGT_DEMUXER,MSGL_INFO,MSGTR_DetectedREALfile);
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file_format=DEMUXER_TYPE_REAL;
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}
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}
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@ -492,6 +496,14 @@ if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_FILM){
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}
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}
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}
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//=============== Try to open as RoQ file: =================
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if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_ROQ){
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demuxer=new_demuxer(stream,DEMUXER_TYPE_ROQ,audio_id,video_id,dvdsub_id);
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if(roq_check_file(demuxer)){
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mp_msg(MSGT_DEMUXER,MSGL_INFO,MSGTR_DetectedROQfile);
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file_format=DEMUXER_TYPE_ROQ;
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}
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}
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//=============== Try to open as MPEG-PS file: =================
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if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_MPEG_PS){
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int pes=1;
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@ -574,6 +586,10 @@ switch(file_format){
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if (!demux_open_film(demuxer)) return NULL;
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break;
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}
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case DEMUXER_TYPE_ROQ: {
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if (!demux_open_roq(demuxer)) return NULL;
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break;
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}
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case DEMUXER_TYPE_MOV: {
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if(!mov_read_header(demuxer)) return NULL;
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// sh_video=d_video->sh;if(sh_video) sh_video->ds=d_video;
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@ -17,6 +17,7 @@
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#define DEMUXER_TYPE_Y4M 12
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#define DEMUXER_TYPE_NUV 13
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#define DEMUXER_TYPE_FILM 14
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#define DEMUXER_TYPE_ROQ 15
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#define DEMUXER_TIME_NONE 0
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#define DEMUXER_TIME_PTS 1
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