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0c6e5f321b
AVCodec is only ever used as an incomplete type (i.e. via a pointer to an AVCodec) in avformat.h and it is not really part of the core of avformat.h or libavformat; almost none of our internal users make use of it (and none make use of hwcontext.h, which is implicitly included). So switch to use struct AVCodec, but continue to include codec.h for external users for compatibility. Also, do the same for AVFrame and frame.h, which is implicitly included by codec.h (via lavu/hwcontext.h). Also, remove an unnecessary inclusion of <time.h>. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
180 lines
5.6 KiB
C
180 lines
5.6 KiB
C
/*
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* Copyright (c) 2013 Nicolas George
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/adler32.h"
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#include "libavutil/avassert.h"
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#include "libavutil/bprint.h"
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#include "libavutil/frame.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavformat/mux.h"
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#include "avformat.h"
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#include "internal.h"
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/* Identical to Adler32 when the type is uint8_t. */
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#define DEFINE_CKSUM_LINE(name, type, conv) \
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static void cksum_line_ ## name(unsigned *cksum, void *data, unsigned size) \
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{ \
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type *p = data; \
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unsigned a = *cksum & 0xFFFF, b = *cksum >> 16; \
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for (; size > 0; size--, p++) { \
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a = (a + (unsigned)(conv)) % 65521; \
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b = (b + a) % 65521; \
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} \
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*cksum = a | (b << 16); \
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}
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DEFINE_CKSUM_LINE(u8, uint8_t, *p)
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DEFINE_CKSUM_LINE(s16, int16_t, *p + 0x8000)
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DEFINE_CKSUM_LINE(s32, int32_t, *p + 0x80000000)
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DEFINE_CKSUM_LINE(flt, float, *p * 0x80000000 + 0x80000000)
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DEFINE_CKSUM_LINE(dbl, double, *p * 0x80000000 + 0x80000000)
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static void video_frame_cksum(AVBPrint *bp, AVFrame *frame)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
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int i, y;
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uint8_t *data;
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int linesize[5] = { 0 };
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av_bprintf(bp, ", %d x %d", frame->width, frame->height);
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if (!desc) {
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av_bprintf(bp, ", unknown");
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return;
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}
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if (av_image_fill_linesizes(linesize, frame->format, frame->width) < 0)
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return;
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av_bprintf(bp, ", %s", desc->name);
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for (i = 0; linesize[i]; i++) {
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unsigned cksum = 0;
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int h = frame->height;
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if ((i == 1 || i == 2) && desc->nb_components >= 3)
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h = AV_CEIL_RSHIFT(h, desc->log2_chroma_h);
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data = frame->data[i];
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for (y = 0; y < h; y++) {
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cksum = av_adler32_update(cksum, data, linesize[i]);
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data += frame->linesize[i];
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}
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av_bprintf(bp, ", 0x%08x", cksum);
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}
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}
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static void audio_frame_cksum(AVBPrint *bp, AVFrame *frame)
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{
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int nb_planes, nb_samples, p;
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const char *name;
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nb_planes = frame->ch_layout.nb_channels;
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nb_samples = frame->nb_samples;
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if (!av_sample_fmt_is_planar(frame->format)) {
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nb_samples *= nb_planes;
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nb_planes = 1;
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}
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name = av_get_sample_fmt_name(frame->format);
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av_bprintf(bp, ", %d samples", frame->nb_samples);
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av_bprintf(bp, ", %s", name ? name : "unknown");
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for (p = 0; p < nb_planes; p++) {
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uint32_t cksum = 0;
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void *d = frame->extended_data[p];
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switch (frame->format) {
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case AV_SAMPLE_FMT_U8:
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case AV_SAMPLE_FMT_U8P:
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cksum_line_u8(&cksum, d, nb_samples);
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break;
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case AV_SAMPLE_FMT_S16:
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case AV_SAMPLE_FMT_S16P:
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cksum_line_s16(&cksum, d, nb_samples);
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break;
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case AV_SAMPLE_FMT_S32:
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case AV_SAMPLE_FMT_S32P:
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cksum_line_s32(&cksum, d, nb_samples);
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break;
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case AV_SAMPLE_FMT_FLT:
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case AV_SAMPLE_FMT_FLTP:
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cksum_line_flt(&cksum, d, nb_samples);
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break;
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case AV_SAMPLE_FMT_DBL:
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case AV_SAMPLE_FMT_DBLP:
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cksum_line_dbl(&cksum, d, nb_samples);
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break;
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default:
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av_assert0(!"reached");
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}
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av_bprintf(bp, ", 0x%08"PRIx32, cksum);
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}
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}
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static int write_header(struct AVFormatContext *s)
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{
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return ff_framehash_write_header(s);
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}
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static int write_frame(struct AVFormatContext *s, int stream_index,
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AVFrame **frame, unsigned flags)
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{
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AVBPrint bp;
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int ret = 0;
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enum AVMediaType type;
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const char *type_name;
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if ((flags & AV_WRITE_UNCODED_FRAME_QUERY))
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return 0;
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av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
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av_bprintf(&bp, "%d, %10"PRId64"",
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stream_index, (*frame)->pts);
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type = s->streams[stream_index]->codecpar->codec_type;
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type_name = av_get_media_type_string(type);
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av_bprintf(&bp, ", %s", type_name ? type_name : "unknown");
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switch (type) {
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case AVMEDIA_TYPE_VIDEO:
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video_frame_cksum(&bp, *frame);
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break;
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case AVMEDIA_TYPE_AUDIO:
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audio_frame_cksum(&bp, *frame);
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break;
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}
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av_bprint_chars(&bp, '\n', 1);
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if (av_bprint_is_complete(&bp))
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avio_write(s->pb, bp.str, bp.len);
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else
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ret = AVERROR(ENOMEM);
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av_bprint_finalize(&bp, NULL);
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return ret;
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}
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static int write_packet(struct AVFormatContext *s, AVPacket *pkt)
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{
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return AVERROR(ENOSYS);
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}
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const FFOutputFormat ff_uncodedframecrc_muxer = {
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.p.name = "uncodedframecrc",
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.p.long_name = NULL_IF_CONFIG_SMALL("uncoded framecrc testing"),
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.p.audio_codec = AV_CODEC_ID_PCM_S16LE,
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.p.video_codec = AV_CODEC_ID_RAWVIDEO,
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.p.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT |
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AVFMT_TS_NEGATIVE,
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.write_header = write_header,
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.write_packet = write_packet,
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.write_uncoded_frame = write_frame,
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};
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