diff options
Diffstat (limited to 'libavcodec/pcm.c')
| -rw-r--r-- | libavcodec/pcm.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c index 8c326c6829..ffcbccc77d 100644 --- a/libavcodec/pcm.c +++ b/libavcodec/pcm.c @@ -42,6 +42,9 @@ static av_cold int pcm_encode_init(AVCodecContext *avctx) case AV_CODEC_ID_PCM_MULAW: pcm_ulaw_tableinit(); break; + case AV_CODEC_ID_PCM_VIDC: + pcm_vidc_tableinit(); + break; default: break; } @@ -216,6 +219,12 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, *dst++ = linear_to_ulaw[(v + 32768) >> 2]; } break; + case AV_CODEC_ID_PCM_VIDC: + for (; n > 0; n--) { + v = *samples++; + *dst++ = linear_to_vidc[(v + 32768) >> 2]; + } + break; default: return -1; } @@ -249,6 +258,10 @@ static av_cold int pcm_decode_init(AVCodecContext *avctx) for (i = 0; i < 256; i++) s->table[i] = ulaw2linear(i); break; + case AV_CODEC_ID_PCM_VIDC: + for (i = 0; i < 256; i++) + s->table[i] = vidc2linear(i); + break; case AV_CODEC_ID_PCM_F16LE: case AV_CODEC_ID_PCM_F24LE: s->scale = 1. / (1 << (avctx->bits_per_coded_sample - 1)); @@ -485,6 +498,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data, break; case AV_CODEC_ID_PCM_ALAW: case AV_CODEC_ID_PCM_MULAW: + case AV_CODEC_ID_PCM_VIDC: for (; n > 0; n--) { AV_WN16A(samples, s->table[*src++]); samples += 2; @@ -612,3 +626,4 @@ PCM_CODEC (PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned PCM_DECODER(PCM_ZORK, AV_SAMPLE_FMT_U8, pcm_zork, "PCM Zork"); PCM_CODEC (PCM_S64BE, AV_SAMPLE_FMT_S64, pcm_s64be, "PCM signed 64-bit big-endian"); PCM_CODEC (PCM_S64LE, AV_SAMPLE_FMT_S64, pcm_s64le, "PCM signed 64-bit little-endian"); +PCM_CODEC (PCM_VIDC, AV_SAMPLE_FMT_S16, pcm_vidc, "PCM Archimedes VIDC"); |