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4xm: K&R formatting cosmetics
This commit is contained in:
Luca Barbato
parent
08859d19b4
commit
e6496ea7e7
@ -57,7 +57,7 @@
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#define GET_LIST_HEADER() \
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fourcc_tag = avio_rl32(pb); \
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size = avio_rl32(pb); \
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size = avio_rl32(pb); \
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if (fourcc_tag != LIST_TAG) \
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return AVERROR_INVALIDDATA; \
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fourcc_tag = avio_rl32(pb);
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@ -103,8 +103,8 @@ static int fourxm_read_header(AVFormatContext *s)
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AVStream *st;
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fourxm->track_count = 0;
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fourxm->tracks = NULL;
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fourxm->fps = 1.0;
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fourxm->tracks = NULL;
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fourxm->fps = 1.0;
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/* skip the first 3 32-bit numbers */
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avio_skip(pb, 12);
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@ -119,7 +119,7 @@ static int fourxm_read_header(AVFormatContext *s)
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header = av_malloc(header_size);
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if (!header)
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return AVERROR(ENOMEM);
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if (avio_read(pb, header, header_size) != header_size){
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if (avio_read(pb, header, header_size) != header_size) {
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av_free(header);
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return AVERROR(EIO);
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}
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@ -127,14 +127,14 @@ static int fourxm_read_header(AVFormatContext *s)
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/* take the lazy approach and search for any and all vtrk and strk chunks */
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for (i = 0; i < header_size - 8; i++) {
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fourcc_tag = AV_RL32(&header[i]);
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size = AV_RL32(&header[i + 4]);
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size = AV_RL32(&header[i + 4]);
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if (fourcc_tag == std__TAG) {
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fourxm->fps = av_int2float(AV_RL32(&header[i + 12]));
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} else if (fourcc_tag == vtrk_TAG) {
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/* check that there is enough data */
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if (size != vtrk_SIZE) {
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ret= AVERROR_INVALIDDATA;
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ret = AVERROR_INVALIDDATA;
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goto fail;
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}
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fourxm->width = AV_RL32(&header[i + 36]);
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@ -142,18 +142,18 @@ static int fourxm_read_header(AVFormatContext *s)
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/* allocate a new AVStream */
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st = avformat_new_stream(s, NULL);
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if (!st){
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ret= AVERROR(ENOMEM);
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if (!st) {
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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avpriv_set_pts_info(st, 60, 1, fourxm->fps);
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fourxm->video_stream_index = st->index;
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st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
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st->codec->codec_id = AV_CODEC_ID_4XM;
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st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
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st->codec->codec_id = AV_CODEC_ID_4XM;
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st->codec->extradata_size = 4;
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st->codec->extradata = av_malloc(4);
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st->codec->extradata = av_malloc(4);
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AV_WL32(st->codec->extradata, AV_RL32(&header[i + 16]));
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st->codec->width = fourxm->width;
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st->codec->height = fourxm->height;
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@ -188,24 +188,25 @@ static int fourxm_read_header(AVFormatContext *s)
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fourxm->tracks[current_track].sample_rate = AV_RL32(&header[i + 40]);
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fourxm->tracks[current_track].bits = AV_RL32(&header[i + 44]);
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fourxm->tracks[current_track].audio_pts = 0;
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if( fourxm->tracks[current_track].channels <= 0
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|| fourxm->tracks[current_track].sample_rate <= 0
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|| fourxm->tracks[current_track].bits < 0){
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if (fourxm->tracks[current_track].channels <= 0 ||
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fourxm->tracks[current_track].sample_rate <= 0 ||
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fourxm->tracks[current_track].bits < 0) {
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av_log(s, AV_LOG_ERROR, "audio header invalid\n");
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ret= -1;
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ret = -1;
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goto fail;
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}
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i += 8 + size;
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/* allocate a new AVStream */
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st = avformat_new_stream(s, NULL);
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if (!st){
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ret= AVERROR(ENOMEM);
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if (!st) {
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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st->id = current_track;
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avpriv_set_pts_info(st, 60, 1, fourxm->tracks[current_track].sample_rate);
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avpriv_set_pts_info(st, 60, 1,
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fourxm->tracks[current_track].sample_rate);
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fourxm->tracks[current_track].stream_index = st->index;
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@ -219,17 +220,17 @@ static int fourxm_read_header(AVFormatContext *s)
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st->codec->block_align = st->codec->channels * st->codec->bits_per_coded_sample;
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if (fourxm->tracks[current_track].adpcm){
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st->codec->codec_id = AV_CODEC_ID_ADPCM_4XM;
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}else if (st->codec->bits_per_coded_sample == 8){
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} else if (st->codec->bits_per_coded_sample == 8) {
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st->codec->codec_id = AV_CODEC_ID_PCM_U8;
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}else
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} else
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st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
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}
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}
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/* skip over the LIST-MOVI chunk (which is where the stream should be */
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GET_LIST_HEADER();
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if (fourcc_tag != MOVI_TAG){
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ret= AVERROR_INVALIDDATA;
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if (fourcc_tag != MOVI_TAG) {
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ret = AVERROR_INVALIDDATA;
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goto fail;
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}
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@ -248,7 +249,7 @@ static int fourxm_read_packet(AVFormatContext *s,
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AVPacket *pkt)
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{
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FourxmDemuxContext *fourxm = s->priv_data;
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AVIOContext *pb = s->pb;
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AVIOContext *pb = s->pb;
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unsigned int fourcc_tag;
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unsigned int size;
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int ret = 0;
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@ -258,18 +259,16 @@ static int fourxm_read_packet(AVFormatContext *s,
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int audio_frame_count;
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while (!packet_read) {
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if ((ret = avio_read(s->pb, header, 8)) < 0)
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return ret;
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fourcc_tag = AV_RL32(&header[0]);
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size = AV_RL32(&header[4]);
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size = AV_RL32(&header[4]);
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if (pb->eof_reached)
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return AVERROR(EIO);
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switch (fourcc_tag) {
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case LIST_TAG:
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/* this is a good time to bump the video pts */
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fourxm->video_pts ++;
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fourxm->video_pts++;
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/* skip the LIST-* tag and move on to the next fourcc */
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avio_rl32(pb);
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@ -286,45 +285,43 @@ static int fourxm_read_packet(AVFormatContext *s,
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if (size + 8 < size || av_new_packet(pkt, size + 8))
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return AVERROR(EIO);
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pkt->stream_index = fourxm->video_stream_index;
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pkt->pts = fourxm->video_pts;
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pkt->pos = avio_tell(s->pb);
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pkt->pts = fourxm->video_pts;
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pkt->pos = avio_tell(s->pb);
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memcpy(pkt->data, header, 8);
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ret = avio_read(s->pb, &pkt->data[8], size);
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if (ret < 0){
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if (ret < 0) {
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av_free_packet(pkt);
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}else
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} else
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packet_read = 1;
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break;
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case snd__TAG:
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track_number = avio_rl32(pb);
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avio_skip(pb, 4);
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size-=8;
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size -= 8;
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if (track_number < fourxm->track_count && fourxm->tracks[track_number].channels>0) {
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ret= av_get_packet(s->pb, pkt, size);
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if(ret<0)
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if (track_number < fourxm->track_count &&
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fourxm->tracks[track_number].channels > 0) {
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ret = av_get_packet(s->pb, pkt, size);
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if (ret < 0)
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return AVERROR(EIO);
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pkt->stream_index =
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fourxm->tracks[track_number].stream_index;
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pkt->pts = fourxm->tracks[track_number].audio_pts;
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pkt->pts = fourxm->tracks[track_number].audio_pts;
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packet_read = 1;
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/* pts accounting */
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audio_frame_count = size;
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if (fourxm->tracks[track_number].adpcm)
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audio_frame_count -=
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2 * (fourxm->tracks[track_number].channels);
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audio_frame_count /=
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fourxm->tracks[track_number].channels;
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if (fourxm->tracks[track_number].adpcm){
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audio_frame_count -= 2 * (fourxm->tracks[track_number].channels);
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audio_frame_count /= fourxm->tracks[track_number].channels;
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if (fourxm->tracks[track_number].adpcm) {
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audio_frame_count *= 2;
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}else
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} else
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audio_frame_count /=
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(fourxm->tracks[track_number].bits / 8);
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(fourxm->tracks[track_number].bits / 8);
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fourxm->tracks[track_number].audio_pts += audio_frame_count;
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} else {
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avio_skip(pb, size);
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}
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