diff options
Diffstat (limited to 'libavformat/segafilm.c')
-rw-r--r-- | libavformat/segafilm.c | 72 |
1 files changed, 11 insertions, 61 deletions
diff --git a/libavformat/segafilm.c b/libavformat/segafilm.c index 5643f33cc8..a56568c300 100644 --- a/libavformat/segafilm.c +++ b/libavformat/segafilm.c @@ -2,20 +2,20 @@ * Sega FILM Format (CPK) Demuxer * Copyright (c) 2003 The ffmpeg Project * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -30,6 +30,7 @@ #include "libavutil/intreadwrite.h" #include "avformat.h" #include "internal.h" +#include "avio_internal.h" #define FILM_TAG MKBETAG('F', 'I', 'L', 'M') #define FDSC_TAG MKBETAG('F', 'D', 'S', 'C') @@ -61,10 +62,6 @@ typedef struct FilmDemuxContext { unsigned int base_clock; unsigned int version; - - /* buffer used for interleaving stereo PCM data */ - unsigned char *stereo_buffer; - int stereo_buffer_size; } FilmDemuxContext; static int film_probe(AVProbeData *p) @@ -86,8 +83,6 @@ static int film_read_header(AVFormatContext *s) unsigned int audio_frame_counter; film->sample_table = NULL; - film->stereo_buffer = NULL; - film->stereo_buffer_size = 0; /* load the main FILM header */ if (avio_read(pb, scratch, 16) != 16) @@ -111,19 +106,14 @@ static int film_read_header(AVFormatContext *s) return AVERROR(EIO); film->audio_samplerate = AV_RB16(&scratch[24]); film->audio_channels = scratch[21]; - if (!film->audio_channels || film->audio_channels > 2) { - av_log(s, AV_LOG_ERROR, - "Invalid number of channels: %d\n", film->audio_channels); - return AVERROR_INVALIDDATA; - } film->audio_bits = scratch[22]; - if (scratch[23] == 2) + if (scratch[23] == 2 && film->audio_channels > 0) film->audio_type = AV_CODEC_ID_ADPCM_ADX; else if (film->audio_channels > 0) { if (film->audio_bits == 8) - film->audio_type = AV_CODEC_ID_PCM_S8; + film->audio_type = AV_CODEC_ID_PCM_S8_PLANAR; else if (film->audio_bits == 16) - film->audio_type = AV_CODEC_ID_PCM_S16BE; + film->audio_type = AV_CODEC_ID_PCM_S16BE_PLANAR; else film->audio_type = AV_CODEC_ID_NONE; } else @@ -213,7 +203,7 @@ static int film_read_header(AVFormatContext *s) for (i = 0; i < film->sample_count; i++) { /* load the next sample record and transfer it to an internal struct */ if (avio_read(pb, scratch, 16) != 16) { - av_free(film->sample_table); + av_freep(&film->sample_table); return AVERROR(EIO); } film->sample_table[i].sample_offset = @@ -250,11 +240,9 @@ static int film_read_packet(AVFormatContext *s, AVIOContext *pb = s->pb; film_sample *sample; int ret = 0; - int i; - int left, right; if (film->current_sample >= film->sample_count) - return AVERROR(EIO); + return AVERROR_EOF; sample = &film->sample_table[film->current_sample]; @@ -268,43 +256,6 @@ static int film_read_packet(AVFormatContext *s, if (av_new_packet(pkt, sample->sample_size)) return AVERROR(ENOMEM); avio_read(pb, pkt->data, sample->sample_size); - } else if ((sample->stream == film->audio_stream_index) && - (film->audio_channels == 2) && - (film->audio_type != AV_CODEC_ID_ADPCM_ADX)) { - /* stereo PCM needs to be interleaved */ - - if (av_new_packet(pkt, sample->sample_size)) - return AVERROR(ENOMEM); - - /* make sure the interleave buffer is large enough */ - if (sample->sample_size > film->stereo_buffer_size) { - av_free(film->stereo_buffer); - film->stereo_buffer_size = sample->sample_size; - film->stereo_buffer = av_malloc(film->stereo_buffer_size); - if (!film->stereo_buffer) { - film->stereo_buffer_size = 0; - return AVERROR(ENOMEM); - } - } - - pkt->pos= avio_tell(pb); - ret = avio_read(pb, film->stereo_buffer, sample->sample_size); - if (ret != sample->sample_size) - ret = AVERROR(EIO); - - left = 0; - right = sample->sample_size / 2; - for (i = 0; i < sample->sample_size; ) { - if (film->audio_bits == 8) { - pkt->data[i++] = film->stereo_buffer[left++]; - pkt->data[i++] = film->stereo_buffer[right++]; - } else { - pkt->data[i++] = film->stereo_buffer[left++]; - pkt->data[i++] = film->stereo_buffer[left++]; - pkt->data[i++] = film->stereo_buffer[right++]; - pkt->data[i++] = film->stereo_buffer[right++]; - } - } } else { ret= av_get_packet(pb, pkt, sample->sample_size); if (ret != sample->sample_size) @@ -323,8 +274,7 @@ static int film_read_close(AVFormatContext *s) { FilmDemuxContext *film = s->priv_data; - av_free(film->sample_table); - av_free(film->stereo_buffer); + av_freep(&film->sample_table); return 0; } |