diff options
Diffstat (limited to 'libavformat/rmenc.c')
| -rw-r--r-- | libavformat/rmenc.c | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/libavformat/rmenc.c b/libavformat/rmenc.c index bbfd550a3b..33eaf6360d 100644 --- a/libavformat/rmenc.c +++ b/libavformat/rmenc.c @@ -2,20 +2,20 @@ * "Real" compatible muxer. * Copyright (c) 2000, 2001 Fabrice Bellard * - * 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 */ #include "avformat.h" @@ -29,7 +29,7 @@ typedef struct StreamInfo { int packet_max_size; /* codec related output */ int bit_rate; - float frame_rate; + AVRational frame_rate; int nb_frames; /* current frame number */ int total_frames; /* total number of frames */ int num; @@ -102,7 +102,7 @@ static int rv10_write_header(AVFormatContext *ctx, nb_packets += stream->nb_packets; packet_total_size += stream->packet_total_size; /* select maximum duration */ - v = (int) (1000.0 * (float)stream->total_frames / stream->frame_rate); + v = av_rescale_q_rnd(stream->total_frames, (AVRational){1000, 1}, stream->frame_rate, AV_ROUND_ZERO); if (v > duration) duration = v; } @@ -178,7 +178,7 @@ static int rv10_write_header(AVFormatContext *ctx, if (!s->seekable || !stream->total_frames) avio_wb32(s, (int)(3600 * 1000)); else - avio_wb32(s, (int)(stream->total_frames * 1000 / stream->frame_rate)); + avio_wb32(s, av_rescale_q_rnd(stream->total_frames, (AVRational){1000, 1}, stream->frame_rate, AV_ROUND_ZERO)); put_str8(s, desc); put_str8(s, mimetype); avio_wb32(s, codec_data_size); @@ -222,8 +222,8 @@ static int rv10_write_header(AVFormatContext *ctx, coded_frame_size--; avio_wb32(s, coded_frame_size); /* frame length */ avio_wb32(s, 0x51540); /* unknown */ - avio_wb32(s, 0x249f0); /* unknown */ - avio_wb32(s, 0x249f0); /* unknown */ + avio_wb32(s, stream->enc->bit_rate / 8 * 60); /* bytes per minute */ + avio_wb32(s, stream->enc->bit_rate / 8 * 60); /* bytes per minute */ avio_wb16(s, 0x01); /* frame length : seems to be very important */ avio_wb16(s, coded_frame_size); @@ -253,9 +253,9 @@ static int rv10_write_header(AVFormatContext *ctx, ffio_wfourcc(s,"RV20"); avio_wb16(s, stream->enc->width); avio_wb16(s, stream->enc->height); - avio_wb16(s, (int) stream->frame_rate); /* frames per seconds ? */ + avio_wb16(s, stream->frame_rate.num / stream->frame_rate.den); /* frames per seconds ? */ avio_wb32(s,0); /* unknown meaning */ - avio_wb16(s, (int) stream->frame_rate); /* unknown meaning */ + avio_wb16(s, stream->frame_rate.num / stream->frame_rate.den); /* unknown meaning */ avio_wb32(s,0); /* unknown meaning */ avio_wb16(s, 8); /* unknown meaning */ /* Seems to be the codec version: only use basic H263. The next @@ -301,7 +301,7 @@ static void write_packet_header(AVFormatContext *ctx, StreamInfo *stream, avio_wb16(s,0); /* version */ avio_wb16(s,length + 12); avio_wb16(s, stream->num); /* stream number */ - timestamp = (1000 * (float)stream->nb_frames) / stream->frame_rate; + timestamp = av_rescale_q_rnd(stream->nb_frames, (AVRational){1000, 1}, stream->frame_rate, AV_ROUND_ZERO); avio_wb32(s, timestamp); /* timestamp */ avio_w8(s, 0); /* reserved */ avio_w8(s, key_frame ? 2 : 0); /* flags */ @@ -314,6 +314,11 @@ static int rm_write_header(AVFormatContext *s) int n; AVCodecContext *codec; + if (s->nb_streams > 2) { + av_log(s, AV_LOG_ERROR, "At most 2 streams are currently supported for muxing in RM\n"); + return AVERROR_PATCHWELCOME; + } + for(n=0;n<s->nb_streams;n++) { AVStream *st = s->streams[n]; int frame_size; @@ -330,7 +335,7 @@ static int rm_write_header(AVFormatContext *s) case AVMEDIA_TYPE_AUDIO: rm->audio_stream = stream; frame_size = av_get_audio_frame_duration(codec, 0); - stream->frame_rate = (float)codec->sample_rate / (float)frame_size; + stream->frame_rate = (AVRational){codec->sample_rate, frame_size}; /* XXX: dummy values */ stream->packet_max_size = 1024; stream->nb_packets = 0; @@ -339,7 +344,7 @@ static int rm_write_header(AVFormatContext *s) case AVMEDIA_TYPE_VIDEO: rm->video_stream = stream; // TODO: should be avg_frame_rate - stream->frame_rate = (float)st->time_base.den / (float)st->time_base.num; + stream->frame_rate = av_inv_q(st->time_base); /* XXX: dummy values */ stream->packet_max_size = 4096; stream->nb_packets = 0; @@ -391,8 +396,8 @@ static int rm_write_video(AVFormatContext *s, const uint8_t *buf, int size, int not sure I understood everything, but it works !! */ #if 1 if (size > MAX_PACKET_SIZE) { - avpriv_report_missing_feature(s, "Muxing packets larger than 64 kB"); - return AVERROR(ENOSYS); + av_log(s, AV_LOG_ERROR, "Muxing packets larger than 64 kB (%d) is not supported\n", size); + return AVERROR_PATCHWELCOME; } write_packet_header(s, stream, size + 7 + (size >= 0x4000)*4, key_frame); /* bit 7: '1' if final packet of a frame converted in several packets */ |