mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 08:12:17 +00:00
770 lines
20 KiB
C
770 lines
20 KiB
C
/*
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* VIVO file parser
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* copyright (c) 2001 A'rpi
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* VIVO text header parser and audio support by alex
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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 <string.h> /* strtok */
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#include "config.h"
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#include "mp_msg.h"
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#include "stream/stream.h"
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#include "demuxer.h"
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#include "stheader.h"
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/* parameters ! */
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int vivo_param_version = -1;
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char *vivo_param_acodec = NULL;
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int vivo_param_abitrate = -1;
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int vivo_param_samplerate = -1;
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int vivo_param_bytesperblock = -1;
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int vivo_param_width = -1;
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int vivo_param_height = -1;
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int vivo_param_vformat = -1;
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/* VIVO audio standards from vivog723.acm:
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G.723:
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FormatTag = 0x111
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Channels = 1 - mono
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SamplesPerSec = 8000 - 8khz
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AvgBytesPerSec = 800
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BlockAlign (bytes per block) = 24
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BitsPerSample = 8
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Siren:
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FormatTag = 0x112
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Channels = 1 - mono
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SamplesPerSec = 16000 - 16khz
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AvgBytesPerSec = 2000
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BlockAlign (bytes per block) = 40
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BitsPerSample = 8
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*/
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//enum { VIVO_AUDIO_G723, VIVO_AUDIO_SIREN };
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#define VIVO_AUDIO_G723 1
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#define VIVO_AUDIO_SIREN 2
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typedef struct {
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/* generic */
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char version;
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int supported;
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/* info */
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char *title;
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char *author;
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char *copyright;
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char *producer;
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/* video */
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float fps;
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int width;
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int height;
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int disp_width;
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int disp_height;
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/* audio */
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int audio_codec;
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int audio_bitrate;
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int audio_samplerate;
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int audio_bytesperblock;
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} vivo_priv_t;
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/* parse all possible extra headers */
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/* (audio headers are separate - mostly with recordtype=3 or 4) */
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#define TEXTPARSE_ALL 1
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static void vivo_parse_text_header(demuxer_t *demux, int header_len)
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{
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vivo_priv_t* priv = demux->priv;
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char *buf;
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int i;
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char *token;
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char *opt, *param;
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int parser_in_audio_block = 0;
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if (!demux->priv)
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{
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priv = malloc(sizeof(vivo_priv_t));
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memset(priv, 0, sizeof(vivo_priv_t));
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demux->priv = priv;
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priv->supported = 0;
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}
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buf = malloc(header_len);
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opt = malloc(header_len);
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param = malloc(header_len);
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stream_read(demux->stream, buf, header_len);
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i=0;
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while(i<header_len && buf[i]==0x0D && buf[i+1]==0x0A) i+=2; // skip empty lines
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token = strtok(buf, (char *)&("\x0d\x0a"));
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while (token && (header_len>2))
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{
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header_len -= strlen(token)+2;
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if (sscanf(token, "%[^:]:%[^\n]", opt, param) != 2)
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{
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mp_msg(MSGT_DEMUX, MSGL_V, "viv_text_header_parser: bad line: '%s' at ~%#"PRIx64"\n",
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token, (int64_t)stream_tell(demux->stream));
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break;
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}
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mp_dbg(MSGT_DEMUX, MSGL_DBG3, "token: '%s' (%zd bytes/%d bytes left)\n",
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token, strlen(token), header_len);
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mp_dbg(MSGT_DEMUX, MSGL_DBG3, "token => o: '%s', p: '%s'\n",
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opt, param);
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/* checking versions: only v1 or v2 is suitable (or known?:) */
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if (!strcmp(opt, "Version"))
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{
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mp_msg(MSGT_DEMUX, MSGL_DBG2, "Version: %s\n", param);
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if (!strncmp(param, "Vivo/1", 6) || !strncmp(param, "Vivo/2", 6))
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{
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priv->supported = 1;
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/* save major version for fourcc */
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priv->version = param[5];
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}
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}
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/* video specific */
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if (!strcmp(opt, "FPS"))
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{
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mp_msg(MSGT_DEMUX, MSGL_DBG2, "FPS: %f\n", atof(param));
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priv->fps = atof(param);
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}
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if (!strcmp(opt, "Width"))
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{
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mp_msg(MSGT_DEMUX, MSGL_DBG2, "Width: %d\n", atoi(param));
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priv->width = atoi(param);
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}
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if (!strcmp(opt, "Height"))
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{
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mp_msg(MSGT_DEMUX, MSGL_DBG2, "Height: %d\n", atoi(param));
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priv->height = atoi(param);
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}
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if (!strcmp(opt, "DisplayWidth"))
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{
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mp_msg(MSGT_DEMUX, MSGL_DBG2, "Display Width: %d\n", atoi(param));
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priv->disp_width = atoi(param);
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}
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if (!strcmp(opt, "DisplayHeight"))
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{
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mp_msg(MSGT_DEMUX, MSGL_DBG2, "Display Height: %d\n", atoi(param));
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priv->disp_height = atoi(param);
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}
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/* audio specific */
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if (!strcmp(opt, "RecordType"))
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{
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/* no audio recordblock by Vivo/1.00, 3 and 4 by Vivo/2.00 */
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if ((atoi(param) == 3) || (atoi(param) == 4))
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parser_in_audio_block = 1;
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else
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parser_in_audio_block = 0;
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}
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if (!strcmp(opt, "NominalBitrate"))
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{
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priv->audio_bitrate = atoi(param);
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if (priv->audio_bitrate == 2000)
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priv->audio_codec = VIVO_AUDIO_SIREN;
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if (priv->audio_bitrate == 800)
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priv->audio_codec = VIVO_AUDIO_G723;
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}
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if (!strcmp(opt, "SamplingFrequency"))
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{
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priv->audio_samplerate = atoi(param);
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if (priv->audio_samplerate == 16000)
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priv->audio_codec = VIVO_AUDIO_SIREN;
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if (priv->audio_samplerate == 8000)
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priv->audio_codec = VIVO_AUDIO_G723;
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}
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if (!strcmp(opt, "Length") && (parser_in_audio_block == 1))
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{
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priv->audio_bytesperblock = atoi(param); /* 24 or 40 kbps */
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if (priv->audio_bytesperblock == 40)
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priv->audio_codec = VIVO_AUDIO_SIREN;
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if (priv->audio_bytesperblock == 24)
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priv->audio_codec = VIVO_AUDIO_G723;
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}
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/* only for displaying some informations about movie*/
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if (!strcmp(opt, "Title"))
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{
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demux_info_add(demux, "title", param);
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priv->title = strdup(param);
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}
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if (!strcmp(opt, "Author"))
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{
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demux_info_add(demux, "author", param);
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priv->author = strdup(param);
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}
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if (!strcmp(opt, "Copyright"))
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{
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demux_info_add(demux, "copyright", param);
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priv->copyright = strdup(param);
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}
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if (!strcmp(opt, "Producer"))
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{
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demux_info_add(demux, "encoder", param);
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priv->producer = strdup(param);
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}
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/* get next token */
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token = strtok(NULL, (char *)&("\x0d\x0a"));
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}
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free(buf);
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free(opt);
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free(param);
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}
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static int vivo_check_file(demuxer_t* demuxer){
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int i=0;
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int len;
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int c;
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unsigned char buf[2048+256];
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vivo_priv_t* priv;
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int orig_pos = stream_tell(demuxer->stream);
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mp_msg(MSGT_DEMUX,MSGL_V,"Checking for VIVO\n");
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c=stream_read_char(demuxer->stream);
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if(c==-256) return 0;
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len=0;
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while((c=stream_read_char(demuxer->stream))>=0x80){
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len+=0x80*(c-0x80);
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if(len>1024) return 0;
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}
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len+=c;
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mp_msg(MSGT_DEMUX,MSGL_V,"header block 1 size: %d\n",len);
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//stream_skip(demuxer->stream,len);
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priv=malloc(sizeof(vivo_priv_t));
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memset(priv,0,sizeof(vivo_priv_t));
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demuxer->priv=priv;
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#if 0
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vivo_parse_text_header(demuxer, len);
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if (priv->supported == 0)
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return 0;
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#else
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/* this is enought for check (for now) */
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stream_read(demuxer->stream,buf,len);
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buf[len]=0;
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// printf("VIVO header: '%s'\n",buf);
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// parse header:
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i=0;
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while(i<len && buf[i]==0x0D && buf[i+1]==0x0A) i+=2; // skip empty lines
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if(strncmp(buf+i,"Version:Vivo/",13)) return 0; // bad version/type!
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#endif
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#if 0
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c=stream_read_char(demuxer->stream);
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if(c) return 0;
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len2=0;
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while((c=stream_read_char(demuxer->stream))>=0x80){
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len2+=0x80*(c-0x80);
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if(len+len2>2048) return 0;
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}
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len2+=c;
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mp_msg(MSGT_DEMUX,MSGL_V,"header block 2 size: %d\n",len2);
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stream_skip(demuxer->stream,len2);
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// stream_read(demuxer->stream,buf+len,len2);
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#endif
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// c=stream_read_char(demuxer->stream);
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// printf("first packet: %02X\n",c);
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stream_seek(demuxer->stream, orig_pos);
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return DEMUXER_TYPE_VIVO;
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}
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static int audio_pos=0;
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static int audio_rate=0;
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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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static int demux_vivo_fill_buffer(demuxer_t *demux, demux_stream_t *dsds){
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demux_stream_t *ds=NULL;
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int c;
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int len=0;
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int seq;
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int prefix=0;
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demux->filepos=stream_tell(demux->stream);
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c=stream_read_char(demux->stream);
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if (c == -256) /* EOF */
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return 0;
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// printf("c=%x,%02X\n",c,c&0xf0);
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if (c == 0x82)
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{
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/* ok, this works, but pts calculating from header is required! */
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/* FIXME: "Calculate PTS from picture header!" */
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prefix = 1;
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c = stream_read_char(demux->stream);
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mp_msg(MSGT_DEMUX, MSGL_V, "packet 0x82(pos=%u) chunk=%x\n",
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(int)stream_tell(demux->stream), c);
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}
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switch(c&0xF0){
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case 0x00: // header - skip it!
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{
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len=stream_read_char(demux->stream);
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if(len>=0x80) len=0x80*(len-0x80)+stream_read_char(demux->stream);
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mp_msg(MSGT_DEMUX, MSGL_V, "vivo extra header: %d bytes\n",len);
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#ifdef TEXTPARSE_ALL
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{
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int pos;
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/* also try to parse all headers */
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pos = stream_tell(demux->stream);
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vivo_parse_text_header(demux, len);
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stream_seek(demux->stream, pos);
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}
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#endif
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break;
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}
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case 0x10: // video packet
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if (prefix == 1)
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len = stream_read_char(demux->stream);
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else
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len=128;
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ds=demux->video;
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break;
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case 0x20: // video packet
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len=stream_read_char(demux->stream);
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ds=demux->video;
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break;
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case 0x30: // audio packet
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if (prefix == 1)
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len = stream_read_char(demux->stream);
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else
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len=40; /* 40kbps */
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ds=demux->audio;
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audio_pos+=len;
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break;
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case 0x40: // audio packet
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if (prefix == 1)
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len = stream_read_char(demux->stream);
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else
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len=24; /* 24kbps */
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ds=demux->audio;
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audio_pos+=len;
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break;
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default:
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mp_msg(MSGT_DEMUX,MSGL_WARN,"VIVO - unknown ID found: %02X at pos %"PRIu64" contact author!\n",
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c, (int64_t)stream_tell(demux->stream));
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return 0;
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}
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// printf("chunk=%x, len=%d\n", c, len);
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if(!ds || ds->id<-1){
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if(len) stream_skip(demux->stream,len);
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return 1;
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}
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seq=c&0x0F;
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if(ds->asf_packet){
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if(ds->asf_seq!=seq){
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// closed segment, finalize packet:
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ds_add_packet(ds,ds->asf_packet);
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ds->asf_packet=NULL;
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// printf("packet!\n");
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} else {
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// append data to it!
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demux_packet_t* dp=ds->asf_packet;
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if(dp->len + len + MP_INPUT_BUFFER_PADDING_SIZE < 0)
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return 0;
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dp->buffer=realloc(dp->buffer,dp->len+len+MP_INPUT_BUFFER_PADDING_SIZE);
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memset(dp->buffer+dp->len+len, 0, MP_INPUT_BUFFER_PADDING_SIZE);
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//memcpy(dp->buffer+dp->len,data,len);
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stream_read(demux->stream,dp->buffer+dp->len,len);
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mp_dbg(MSGT_DEMUX,MSGL_DBG4,"data appended! %d+%d\n",dp->len,len);
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dp->len+=len;
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// we are ready now.
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if((c&0xF0)==0x20) --ds->asf_seq; // hack!
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return 1;
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}
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}
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// create new packet:
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{ demux_packet_t* dp;
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dp=new_demux_packet(len);
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//memcpy(dp->buffer,data,len);
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stream_read(demux->stream,dp->buffer,len);
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dp->pts=audio_rate?((float)audio_pos/(float)audio_rate):0;
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// dp->flags=keyframe;
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// if(ds==demux->video) printf("ASF time: %8d dur: %5d \n",time,dur);
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dp->pos=demux->filepos;
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ds->asf_packet=dp;
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ds->asf_seq=seq;
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// we are ready now.
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return 1;
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}
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}
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static const short h263_format[8][2] = {
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{ 0, 0 },
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{ 128, 96 },
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{ 176, 144 },
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{ 352, 288 },
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{ 704, 576 },
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{ 1408, 1152 },
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{ 320, 240 } // ??????? or 240x180 (found in vivo2) ?
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};
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static unsigned char* buffer;
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static int bufptr=0;
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static int bitcnt=0;
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static unsigned char buf=0;
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static int format, width, height;
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static unsigned int x_get_bits(int n){
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unsigned int x=0;
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while(n-->0){
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if(!bitcnt){
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// fill buff
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buf=buffer[bufptr++];
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bitcnt=8;
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}
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//x=(x<<1)|(buf&1);buf>>=1;
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x=(x<<1)|(buf>>7);buf<<=1;
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--bitcnt;
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}
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return x;
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}
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#define get_bits(xxx,n) x_get_bits(n)
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#define get_bits1(xxx) x_get_bits(1)
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#define skip_bits(xxx,n) x_get_bits(n)
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#define skip_bits1(xxx) x_get_bits(1)
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/* most is hardcoded. should extend to handle all h263 streams */
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static int h263_decode_picture_header(unsigned char *b_ptr)
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{
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// int i;
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// for(i=0;i<16;i++) printf(" %02X",b_ptr[i]); printf("\n");
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buffer=b_ptr;
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bufptr=bitcnt=buf=0;
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/* picture header */
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if (get_bits(&s->gb, 22) != 0x20){
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mp_msg(MSGT_DEMUX, MSGL_FATAL, "bad picture header\n");
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return -1;
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}
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skip_bits(&s->gb, 8); /* picture timestamp */
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if (get_bits1(&s->gb) != 1){
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mp_msg(MSGT_DEMUX, MSGL_FATAL, "bad marker\n");
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return -1; /* marker */
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}
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if (get_bits1(&s->gb) != 0){
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mp_msg(MSGT_DEMUX, MSGL_FATAL, "bad h263 id\n");
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return -1; /* h263 id */
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}
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skip_bits1(&s->gb); /* split screen off */
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skip_bits1(&s->gb); /* camera off */
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skip_bits1(&s->gb); /* freeze picture release off */
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format = get_bits(&s->gb, 3);
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if (format != 7) {
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mp_msg(MSGT_DEMUX, MSGL_V, "h263_plus = 0 format = %d\n", format);
|
|
/* H.263v1 */
|
|
width = h263_format[format][0];
|
|
height = h263_format[format][1];
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "%d x %d\n", width, height);
|
|
// if (!width) return -1;
|
|
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "pict_type=%d\n", get_bits1(&s->gb));
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "unrestricted_mv=%d\n", get_bits1(&s->gb));
|
|
#if 1
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "SAC: %d\n", get_bits1(&s->gb));
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "advanced prediction mode: %d\n", get_bits1(&s->gb));
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "PB frame: %d\n", get_bits1(&s->gb));
|
|
#else
|
|
if (get_bits1(&s->gb) != 0)
|
|
return -1; /* SAC: off */
|
|
if (get_bits1(&s->gb) != 0)
|
|
return -1; /* advanced prediction mode: off */
|
|
if (get_bits1(&s->gb) != 0)
|
|
return -1; /* not PB frame */
|
|
#endif
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "qscale=%d\n", get_bits(&s->gb, 5));
|
|
skip_bits1(&s->gb); /* Continuous Presence Multipoint mode: off */
|
|
} else {
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "h263_plus = 1\n");
|
|
/* H.263v2 */
|
|
if (get_bits(&s->gb, 3) != 1){
|
|
mp_msg(MSGT_DEMUX, MSGL_FATAL, "H.263v2 A error\n");
|
|
return -1;
|
|
}
|
|
if (get_bits(&s->gb, 3) != 6){ /* custom source format */
|
|
mp_msg(MSGT_DEMUX, MSGL_FATAL, "custom source format\n");
|
|
return -1;
|
|
}
|
|
skip_bits(&s->gb, 12);
|
|
skip_bits(&s->gb, 3);
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "pict_type=%d\n", get_bits(&s->gb, 3) + 1);
|
|
// if (s->pict_type != I_TYPE &&
|
|
// s->pict_type != P_TYPE)
|
|
// return -1;
|
|
skip_bits(&s->gb, 7);
|
|
skip_bits(&s->gb, 4); /* aspect ratio */
|
|
width = (get_bits(&s->gb, 9) + 1) * 4;
|
|
skip_bits1(&s->gb);
|
|
height = get_bits(&s->gb, 9) * 4;
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "%d x %d\n", width, height);
|
|
//if (height == 0)
|
|
// return -1;
|
|
mp_msg(MSGT_DEMUX, MSGL_V, "qscale=%d\n", get_bits(&s->gb, 5));
|
|
}
|
|
|
|
/* PEI */
|
|
while (get_bits1(&s->gb) != 0) {
|
|
skip_bits(&s->gb, 8);
|
|
}
|
|
// s->f_code = 1;
|
|
// s->width = width;
|
|
// s->height = height;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
static demuxer_t* demux_open_vivo(demuxer_t* demuxer){
|
|
vivo_priv_t* priv=demuxer->priv;
|
|
|
|
if(!ds_fill_buffer(demuxer->video)){
|
|
mp_msg(MSGT_DEMUX, MSGL_ERR, "VIVO: %s",
|
|
mp_gtext("Missing video stream!? Contact the author, it may be a bug :(\n"));
|
|
return NULL;
|
|
}
|
|
|
|
audio_pos=0;
|
|
|
|
h263_decode_picture_header(demuxer->video->buffer);
|
|
|
|
if (vivo_param_version != -1)
|
|
priv->version = '0' + vivo_param_version;
|
|
|
|
{ sh_video_t* sh=new_sh_video(demuxer,0);
|
|
|
|
/* viv1, viv2 (for better codecs.conf) */
|
|
sh->format = mmioFOURCC('v', 'i', 'v', priv->version);
|
|
if(!sh->fps)
|
|
{
|
|
if (priv->fps)
|
|
sh->fps=priv->fps;
|
|
else
|
|
sh->fps=15.0f;
|
|
}
|
|
sh->frametime=1.0f/sh->fps;
|
|
|
|
/* XXX: FIXME: can't scale image. */
|
|
/* hotfix to disable: */
|
|
priv->disp_width = priv->width;
|
|
priv->disp_height = priv->height;
|
|
|
|
if (vivo_param_width != -1)
|
|
priv->disp_width = priv->width = vivo_param_width;
|
|
|
|
if (vivo_param_height != -1)
|
|
priv->disp_height = priv->height = vivo_param_height;
|
|
|
|
if (vivo_param_vformat != -1)
|
|
{
|
|
priv->disp_width = priv->width = h263_format[vivo_param_vformat][0];
|
|
priv->disp_height = priv->height = h263_format[vivo_param_vformat][1];
|
|
}
|
|
|
|
if (priv->disp_width)
|
|
sh->disp_w = priv->disp_width;
|
|
else
|
|
sh->disp_w = width;
|
|
if (priv->disp_height)
|
|
sh->disp_h = priv->disp_height;
|
|
else
|
|
sh->disp_h = height;
|
|
|
|
// emulate BITMAPINFOHEADER:
|
|
sh->bih=calloc(1, sizeof(*sh->bih));
|
|
sh->bih->biSize=40;
|
|
if (priv->width)
|
|
sh->bih->biWidth = priv->width;
|
|
else
|
|
sh->bih->biWidth = width;
|
|
if (priv->height)
|
|
sh->bih->biHeight = priv->height;
|
|
else
|
|
sh->bih->biHeight = height;
|
|
sh->bih->biPlanes=1;
|
|
sh->bih->biBitCount=24;
|
|
sh->bih->biCompression=sh->format;
|
|
sh->bih->biSizeImage=sh->bih->biWidth*sh->bih->biHeight*3;
|
|
|
|
/* insert as stream */
|
|
demuxer->video->sh=sh;
|
|
sh->ds=demuxer->video;
|
|
demuxer->video->id=0;
|
|
|
|
/* disable seeking */
|
|
demuxer->seekable = 0;
|
|
|
|
mp_msg(MSGT_DEMUX,MSGL_V,"VIVO Video stream %d size: display: %dx%d, codec: %ux%u\n",
|
|
demuxer->video->id, sh->disp_w, sh->disp_h, sh->bih->biWidth,
|
|
sh->bih->biHeight);
|
|
}
|
|
|
|
/* AUDIO init */
|
|
if (demuxer->audio->id >= -1){
|
|
if(!ds_fill_buffer(demuxer->audio)){
|
|
mp_msg(MSGT_DEMUX, MSGL_ERR, "VIVO: %s",
|
|
mp_gtext("No audio stream found -> no sound.\n"));
|
|
} else
|
|
{ sh_audio_t* sh=new_sh_audio(demuxer,1);
|
|
|
|
/* Select audio codec */
|
|
if (priv->audio_codec == 0)
|
|
{
|
|
if (priv->version == '2')
|
|
priv->audio_codec = VIVO_AUDIO_SIREN;
|
|
else
|
|
priv->audio_codec = VIVO_AUDIO_G723;
|
|
}
|
|
if (vivo_param_acodec != NULL)
|
|
{
|
|
if (!strcasecmp(vivo_param_acodec, "g723"))
|
|
priv->audio_codec = VIVO_AUDIO_G723;
|
|
if (!strcasecmp(vivo_param_acodec, "siren"))
|
|
priv->audio_codec = VIVO_AUDIO_SIREN;
|
|
}
|
|
|
|
if (priv->audio_codec == VIVO_AUDIO_G723)
|
|
sh->format = 0x111;
|
|
else if (priv->audio_codec == VIVO_AUDIO_SIREN)
|
|
sh->format = 0x112;
|
|
else
|
|
{
|
|
mp_msg(MSGT_DEMUX, MSGL_ERR, "VIVO: Not support audio codec (%d)\n",
|
|
priv->audio_codec);
|
|
free_sh_audio(demuxer, 1);
|
|
goto nosound;
|
|
}
|
|
|
|
// Emulate WAVEFORMATEX struct:
|
|
sh->wf=calloc(1, sizeof(*sh->wf));
|
|
sh->wf->wFormatTag=sh->format;
|
|
sh->wf->nChannels=1; /* 1 channels for both Siren and G.723 */
|
|
|
|
/* Set bits per sample */
|
|
if (priv->audio_codec == VIVO_AUDIO_SIREN)
|
|
sh->wf->wBitsPerSample = 16;
|
|
else
|
|
if (priv->audio_codec == VIVO_AUDIO_G723)
|
|
sh->wf->wBitsPerSample = 8;
|
|
|
|
/* Set sampling rate */
|
|
if (priv->audio_samplerate) /* got from header */
|
|
sh->wf->nSamplesPerSec = priv->audio_samplerate;
|
|
else
|
|
{
|
|
if (priv->audio_codec == VIVO_AUDIO_SIREN)
|
|
sh->wf->nSamplesPerSec = 16000;
|
|
if (priv->audio_codec == VIVO_AUDIO_G723)
|
|
sh->wf->nSamplesPerSec = 8000;
|
|
}
|
|
if (vivo_param_samplerate != -1)
|
|
sh->wf->nSamplesPerSec = vivo_param_samplerate;
|
|
|
|
/* Set audio bitrate */
|
|
if (priv->audio_bitrate) /* got from header */
|
|
sh->wf->nAvgBytesPerSec = priv->audio_bitrate;
|
|
else
|
|
{
|
|
if (priv->audio_codec == VIVO_AUDIO_SIREN)
|
|
sh->wf->nAvgBytesPerSec = 2000;
|
|
if (priv->audio_codec == VIVO_AUDIO_G723)
|
|
sh->wf->nAvgBytesPerSec = 800;
|
|
}
|
|
if (vivo_param_abitrate != -1)
|
|
sh->wf->nAvgBytesPerSec = vivo_param_abitrate;
|
|
audio_rate=sh->wf->nAvgBytesPerSec;
|
|
|
|
if (!priv->audio_bytesperblock)
|
|
{
|
|
if (priv->audio_codec == VIVO_AUDIO_SIREN)
|
|
sh->wf->nBlockAlign = 40;
|
|
if (priv->audio_codec == VIVO_AUDIO_G723)
|
|
sh->wf->nBlockAlign = 24;
|
|
}
|
|
else
|
|
sh->wf->nBlockAlign = priv->audio_bytesperblock;
|
|
if (vivo_param_bytesperblock != -1)
|
|
sh->wf->nBlockAlign = vivo_param_bytesperblock;
|
|
|
|
/*sound_ok:*/
|
|
/* insert as stream */
|
|
demuxer->audio->sh=sh;
|
|
sh->ds=demuxer->audio;
|
|
demuxer->audio->id=1;
|
|
nosound:
|
|
return demuxer;
|
|
}
|
|
}
|
|
return demuxer;
|
|
}
|
|
|
|
static void demux_close_vivo(demuxer_t *demuxer)
|
|
{
|
|
vivo_priv_t* priv=demuxer->priv;
|
|
|
|
if (priv) {
|
|
free(priv->title);
|
|
free(priv->author);
|
|
free(priv->copyright);
|
|
free(priv->producer);
|
|
free(priv);
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
const demuxer_desc_t demuxer_desc_vivo = {
|
|
"Vivo demuxer",
|
|
"vivo",
|
|
"VIVO",
|
|
"A'rpi, Alex Beregszasi",
|
|
"",
|
|
DEMUXER_TYPE_VIVO,
|
|
0, // unsafe autodetect
|
|
vivo_check_file,
|
|
demux_vivo_fill_buffer,
|
|
demux_open_vivo,
|
|
demux_close_vivo,
|
|
NULL,
|
|
NULL
|
|
};
|