Head

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/flvenc.c	Lines:	40	48	83.3 %
Date:	2019-11-18 18:00:01	Branches:	17	32	53.1 %


/*
 * FLV Encoding specific code.
 *
 * This file is part of FFmpeg.
 *
 * 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.
 *
 * 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 FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "flv.h"
#include "h263.h"
#include "h263data.h"
#include "mpegvideo.h"
#include "mpegvideodata.h"

void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number)
{
    int format;

    avpriv_align_put_bits(&s->pb);

    put_bits(&s->pb, 17, 1);
    /* 0: H.263 escape codes 1: 11-bit escape codes */
    put_bits(&s->pb, 5, (s->h263_flv - 1));
    put_bits(&s->pb, 8,
             (((int64_t) s->picture_number * 30 * s->avctx->time_base.num) /   // FIXME use timestamp
              s->avctx->time_base.den) & 0xff);   /* TemporalReference */
    if (s->width == 352 && s->height == 288)
        format = 2;
    else if (s->width == 176 && s->height == 144)
        format = 3;
    else if (s->width == 128 && s->height == 96)
        format = 4;
    else if (s->width == 320 && s->height == 240)
        format = 5;
    else if (s->width == 160 && s->height == 120)
        format = 6;
    else if (s->width <= 255 && s->height <= 255)
        format = 0;   /* use 1 byte width & height */
    else
        format = 1;   /* use 2 bytes width & height */
    put_bits(&s->pb, 3, format);   /* PictureSize */
    if (format == 0) {
        put_bits(&s->pb, 8, s->width);
        put_bits(&s->pb, 8, s->height);
    } else if (format == 1) {
        put_bits(&s->pb, 16, s->width);
        put_bits(&s->pb, 16, s->height);
    }
    put_bits(&s->pb, 2, s->pict_type == AV_PICTURE_TYPE_P);   /* PictureType */
    put_bits(&s->pb, 1, 1);   /* DeblockingFlag: on */
    put_bits(&s->pb, 5, s->qscale);   /* Quantizer */
    put_bits(&s->pb, 1, 0);   /* ExtraInformation */

    if (s->h263_aic) {
        s->y_dc_scale_table =
        s->c_dc_scale_table = ff_aic_dc_scale_table;
    } else {
        s->y_dc_scale_table =
        s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
    }
}

void ff_flv2_encode_ac_esc(PutBitContext *pb, int slevel, int level,
                           int run, int last)
{
    if (level < 64) { // 7-bit level
        put_bits(pb, 1, 0);
        put_bits(pb, 1, last);
        put_bits(pb, 6, run);

        put_sbits(pb, 7, slevel);
    } else {
        /* 11-bit level */
        put_bits(pb, 1, 1);
        put_bits(pb, 1, last);
        put_bits(pb, 6, run);

        put_sbits(pb, 11, slevel);
    }
}

static const AVClass flv_class = {
    .class_name = "flv encoder",
    .item_name  = av_default_item_name,
    .option     = ff_mpv_generic_options,
    .version    = LIBAVUTIL_VERSION_INT,
};

AVCodec ff_flv_encoder = {
    .name           = "flv",
    .long_name      = NULL_IF_CONFIG_SMALL("FLV / Sorenson Spark / Sorenson H.263 (Flash Video)"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_FLV1,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_mpv_encode_init,
    .encode2        = ff_mpv_encode_picture,
    .close          = ff_mpv_encode_end,
    .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
                                                     AV_PIX_FMT_NONE},
    .priv_class     = &flv_class,
};


Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/*
2			* FLV Encoding specific code.
3			*
4			* This file is part of FFmpeg.
5			*
6			* FFmpeg is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10			*
11			* FFmpeg is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public
17			* License along with FFmpeg; if not, write to the Free Software
18			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19			*/
20
21			#include "flv.h"
22			#include "h263.h"
23			#include "h263data.h"
24			#include "mpegvideo.h"
25			#include "mpegvideodata.h"
26
27		390	void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number)
28			{
29			int format;
30
31		390	avpriv_align_put_bits(&s->pb);
32
33		390	put_bits(&s->pb, 17, 1);
34			/* 0: H.263 escape codes 1: 11-bit escape codes */
35		390	put_bits(&s->pb, 5, (s->h263_flv - 1));
36		390	put_bits(&s->pb, 8,
37		390	(((int64_t) s->picture_number * 30 * s->avctx->time_base.num) / // FIXME use timestamp
38		390	s->avctx->time_base.den) & 0xff); /* TemporalReference */
39	✓✓✓✗	390	if (s->width == 352 && s->height == 288)
40		200	format = 2;
41	✗✓✗✗	190	else if (s->width == 176 && s->height == 144)
42			format = 3;
43	✗✓✗✗	190	else if (s->width == 128 && s->height == 96)
44			format = 4;
45	✓✓✓✗	190	else if (s->width == 320 && s->height == 240)
46		140	format = 5;
47	✗✓✗✗	50	else if (s->width == 160 && s->height == 120)
48			format = 6;
49	✓✗✓✗	50	else if (s->width <= 255 && s->height <= 255)
50		50	format = 0; /* use 1 byte width & height */
51			else
52			format = 1; /* use 2 bytes width & height */
53		390	put_bits(&s->pb, 3, format); /* PictureSize */
54	✓✓	390	if (format == 0) {
55		50	put_bits(&s->pb, 8, s->width);
56		50	put_bits(&s->pb, 8, s->height);
57	✗✓	340	} else if (format == 1) {
58			put_bits(&s->pb, 16, s->width);
59			put_bits(&s->pb, 16, s->height);
60			}
61		390	put_bits(&s->pb, 2, s->pict_type == AV_PICTURE_TYPE_P); /* PictureType */
62		390	put_bits(&s->pb, 1, 1); /* DeblockingFlag: on */
63		390	put_bits(&s->pb, 5, s->qscale); /* Quantizer */
64		390	put_bits(&s->pb, 1, 0); /* ExtraInformation */
65
66	✗✓	390	if (s->h263_aic) {
67			s->y_dc_scale_table =
68			s->c_dc_scale_table = ff_aic_dc_scale_table;
69			} else {
70		390	s->y_dc_scale_table =
71		390	s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
72			}
73		390	}
74
75		187500	void ff_flv2_encode_ac_esc(PutBitContext *pb, int slevel, int level,
76			int run, int last)
77			{
78	✓✓	187500	if (level < 64) { // 7-bit level
79		175592	put_bits(pb, 1, 0);
80		175592	put_bits(pb, 1, last);
81		175592	put_bits(pb, 6, run);
82
83		175592	put_sbits(pb, 7, slevel);
84			} else {
85			/* 11-bit level */
86		11908	put_bits(pb, 1, 1);
87		11908	put_bits(pb, 1, last);
88		11908	put_bits(pb, 6, run);
89
90		11908	put_sbits(pb, 11, slevel);
91			}
92		187500	}
93
94			static const AVClass flv_class = {
95			.class_name = "flv encoder",
96			.item_name = av_default_item_name,
97			.option = ff_mpv_generic_options,
98			.version = LIBAVUTIL_VERSION_INT,
99			};
100
101			AVCodec ff_flv_encoder = {
102			.name = "flv",
103			.long_name = NULL_IF_CONFIG_SMALL("FLV / Sorenson Spark / Sorenson H.263 (Flash Video)"),
104			.type = AVMEDIA_TYPE_VIDEO,
105			.id = AV_CODEC_ID_FLV1,
106			.priv_data_size = sizeof(MpegEncContext),
107			.init = ff_mpv_encode_init,
108			.encode2 = ff_mpv_encode_picture,
109			.close = ff_mpv_encode_end,
110			.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
111			AV_PIX_FMT_NONE},
112			.priv_class = &flv_class,
113			};