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author | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-03-25 21:06:01 +0000 |
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committer | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-03-25 21:06:01 +0000 |
commit | 7c026066ea35886bddfda08a71c0cc8f170a5d86 (patch) | |
tree | 963bf77f55faf2b9795502065ef95878fade190a /libmpcodecs/ad_ffmpeg.c | |
parent | 94d3170bd0561939a0ec322860be1f28d711e271 (diff) | |
download | mpv-7c026066ea35886bddfda08a71c0cc8f170a5d86.tar.bz2 mpv-7c026066ea35886bddfda08a71c0cc8f170a5d86.tar.xz |
imported from MPlayerXP, dlopen() hack removed, some bugs fixed, interface functions changed to static, info->author field added
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5341 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpcodecs/ad_ffmpeg.c')
-rw-r--r-- | libmpcodecs/ad_ffmpeg.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/libmpcodecs/ad_ffmpeg.c b/libmpcodecs/ad_ffmpeg.c new file mode 100644 index 0000000000..9929ca2802 --- /dev/null +++ b/libmpcodecs/ad_ffmpeg.c @@ -0,0 +1,106 @@ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include "config.h" +#include "mp_msg.h" +#include "help_mp.h" + +#include "ad_internal.h" + +#include "bswap.h" + +static ad_info_t info = +{ + "FFmpeg audio decoders", + "ffmpeg", + AFM_FFMPEG, + "Nick Kurshev", + "ffmpeg.sf.net", + "" +}; + +LIBAD_EXTERN(ffmpeg) + +#define assert(x) +#include "../libavcodec/avcodec.h" + +static AVCodec *lavc_codec=NULL; +static AVCodecContext lavc_context; +extern int avcodec_inited; + +static int preinit(sh_audio_t *sh) +{ + sh->audio_out_minsize=AVCODEC_MAX_AUDIO_FRAME_SIZE; + return 1; +} + +static int init(sh_audio_t *sh_audio) +{ + int x; + mp_msg(MSGT_DECAUDIO,MSGL_V,"FFmpeg's libavcodec audio codec\n"); + if(!avcodec_inited){ + avcodec_init(); + avcodec_register_all(); + avcodec_inited=1; + } + lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh_audio->codec->dll); + if(!lavc_codec){ + mp_msg(MSGT_DECAUDIO,MSGL_ERR,MSGTR_MissingLAVCcodec,sh_audio->codec->dll); + return 0; + } + memset(&lavc_context, 0, sizeof(lavc_context)); + /* open it */ + if (avcodec_open(&lavc_context, lavc_codec) < 0) { + mp_msg(MSGT_DECAUDIO,MSGL_ERR, MSGTR_CantOpenCodec); + return 0; + } + mp_msg(MSGT_DECAUDIO,MSGL_V,"INFO: libavcodec init OK!\n"); + + // Decode at least 1 byte: (to get header filled) + x=decode_audio(sh_audio,sh_audio->a_buffer,1,sh_audio->a_buffer_size); + if(x>0) sh_audio->a_buffer_len=x; + +#if 1 + sh_audio->channels=lavc_context.channels; + sh_audio->samplerate=lavc_context.sample_rate; + sh_audio->i_bps=lavc_context.bit_rate/8; +#else + sh_audio->channels=sh_audio->wf->nChannels; + sh_audio->samplerate=sh_audio->wf->nSamplesPerSec; + sh_audio->i_bps=sh_audio->wf->nAvgBytesPerSec; +#endif + return 1; +} + +static void uninit(sh_audio_t *sh) +{ + avcodec_close(&lavc_context); +} + +static int control(sh_audio_t *sh,int cmd,void* arg, ...) +{ + // TODO ??? + return CONTROL_UNKNOWN; +} + +static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen) +{ + unsigned char *start=NULL; + int y,len=-1; + while(len<minlen){ + int len2=0; + int x=ds_get_packet(sh_audio->ds,&start); + if(x<=0) break; // error + y=avcodec_decode_audio(&lavc_context,(INT16*)buf,&len2,start,x); + if(y<0){ mp_msg(MSGT_DECAUDIO,MSGL_V,"lavc_audio: error\n");break; } + if(y<x) sh_audio->ds->buffer_pos+=y-x; // put back data (HACK!) + if(len2>0){ + //len=len2;break; + if(len<0) len=len2; else len+=len2; + buf+=len2; + } + mp_dbg(MSGT_DECAUDIO,MSGL_DBG2,"Decoded %d -> %d \n",y,len2); + } + return len; +} |